Sovereign Metals Limited: Outstanding Metallurgical Results from Emerging Rutile Province
(firmenpresse) - -
OUTSTANDING METALLURGICAL RESULTS
FROM EMERGING RUTILE PROVINCE
Sovereign Metals Limited (the Company or Sovereign) is pleased to report outstanding initial results from ongoing metallurgical test-work on rutile mineralisation recently discovered across the Companys large ground-holding in Malawi.
HIGHLIGHTS:
- Metallurgical test-work has demonstrated that very high-quality rutile meeting or exceeding typical market specifications can be produced
- Rutile product with 96.0% TiO2 was produced using conventional mineral sands processing methods with a recovered rutile grade of 1.16%
- The product has many parameters at best-in-class levels
- Standout attributes include exceptionally low levels of chromium (Cr), zirconium (Zr), uranium (U) and thorium (Th)
- Extensive rutile mineralisation has been identified from surface as a residual placer comprised of free-dig, friable saprolite material formed by complete weathering of rutile-rich paragneiss basement rocks
- Initial indications are that Sovereigns >4,000km2 ground package in Malawi has the potential to host a significant rutile province
- Ongoing and proposed work programs include:
o Hand auger drilling to define discrete areas of mineralisation for future resource definition
o Extensive regional soil sampling and panning to identify new areas of rutile mineralisation
o Continued metallurgical test-work at two Australian laboratories designed to optimise and validate the metallurgical flowsheet at a larger scale and produce quantities of commercial specification rutile for initial market sounding
Sovereigns Managing Director Dr Julian Stephens commented:
The ability to produce a natural rutile product to commercial specifications comparable to leading market products from our saprolite-hosted prospects in Malawi is a significant milestone. These initial metallurgical results are an important step in validating the commercial importance of the rutile mineralisation we have discovered and give us confidence to move forward with expanded exploration and metallurgical test-work programs. The natural rutile market has highly favourable fundamentals with the commodity known to be in structural deficit.
ENQUIRIES
Dr Julian Stephens (Perth)
Managing Director
+61(8) 9322 6322-Sam Cordin (Perth)
+61(8) 9322 6322-Sapan Ghai (London)
+44 207 478 3900
METALLURGY RESULTS AND RUTILE PRODUCT SPECIFICATIONS
On 24th January 2019, Sovereign announced reconnaissance results from 125 hand-auger holes across the Companys Malawi tenements identifying high TiO2 grades in-situ. These results represent the total TiO2 in the samples and identified rutile as the dominant TiO2 mineral in many samples along with minor leucoxene. A follow-up sighter metallurgical test-work program was undertaken on a 180kg sample of saprolite-hosted rutile from an area representative of the style of mineralisation at the Wofiira prospect. This test work focused on generating saleable product specifications and demonstrated that a high-quality commercial rutile product can be produced using conventional mineral sands processing methods. The recovered rutile grade from in-situ was 1.16% produced in a +38µm to -250µm size fraction. Test work is ongoing in order to improve rutile recoveries and to determine if other valuable heavy minerals can be recovered as by-products. Further field and laboratory programs are also underway to better understand the empirical relationship between recovered grades of commercial specification rutile product and assayed in-situ distribution of chemical TiO2.
Results from the initial metallurgical program show that Sovereigns rutile product specifications meet market requirements with many parameters at best-in-class levels. Standout attributes include;
- Rutile product grade of 96.0% TiO2 at a recovered rutile grade of 1.16%
- Exceptionally low uranium and thorium levels
- Exceptionally low chromium levels
- Exceptionally low zirconium levels
https://www.irw-press.at/prcom/images/messages/2019/47128/190624 ASX - High Quality Rutile FINAL_PRCOM.001.jpeg
Figure 1. Photo-micrograph of Sovereigns high quality rutile concentrate. Field of view is approximately 1.5mm across.
The laboratory specifications achieved are shown in Table 1 below, with comparisons to some leading natural rutile products currently in the market. Importantly, Sovereigns initial rutile product is of comparable quality to Sierra Rutiles, suggesting potential for strong interest from natural rutile end-users.
Table 1: Comparison of Sovereigns rutile specifications to
leading global
producers
ConstituentMalawi Sierra RBM Kwale Namakwa
Rutile Rutile (Rio (Base Sands
(Sovereig Tinto) Resources
n) (Iluka) ) (Tronox)
TiO2 % 96.0 96.29 93.30 96.18 94.50
ZrO2+HfO% 0.14 0.78 1.30 0.72 1.10
2
SiO2 % 1.29 0.62 2.00 0.94 2.00
Fe2O3 % 0.97 0.38 0.70 1.25 0.8
Al2O3 % 0.33 0.31 0.90 0.23 0.6
Cr2O3 % 0.046 0.19 0.11 0.17 0.14
V2O5 % 0.50 0.58 0.40 0.52 0.33
Nb2O5 % 0.25 0.15 0.30 - 0.04
P2O5 % 0.036 0.01 0.03 0 0.02
MnO % <0.01 0.01 - 0.03 0.4
MgO % 0.01 <0.01 - 0.1 0.01
CaO % 0.02 0.01 - 0.04 0.04
SO3/S % 0.048 <0.01 <0.05 - 0.01
Sn % 0.005 - - - -
U+Th ppm30 26 100 - -
Iluka is Iluka Resources Limited; Rio Tinto is Rio Tinto
plc; Base Resources is Base Resources Limited; Tronox is
Tronox Holdings plc.
- is not disclosed. Sources: RBM data from World Titanium
Resources Ltd TZMI Conference Presentation November 2011
(Updated January 2012); Sierra Rutile, Kwale and Namakwa Sands
data from BGR Assessment Manual titled Heavy Minerals of
Economic Importance
2010.
GEOLOGICAL SETTING
Almost all known commercial rutile deposits occur as placer accumulations with the original source most commonly being metamorphosed sedimentary rocks known as paragneisses1. These bedrock sources in most cases contain relatively low grades of rutile, although they are often exposed over vast areas. When eroded, this material is washed into large water bodies (oceans, lakes, rivers) where the heavy minerals are concentrated into transient and terminal placers by wind and water action (Figure 2).
https://www.irw-press.at/prcom/images/messages/2019/47128/190624 ASX - High Quality Rutile FINAL_PRCOM.002.jpeg
Figure 2. Schematic geological cross-section model demonstrating different types of heavy mineral placer deposits and their mode of formation.
In Malawi, Sovereign controls a very large area underlain predominantly by paragneiss rocks which are commonly highly enriched in rutile compared to other similar paragneiss terranes globally. Additionally, the weathering process has further concentrated the rutile near surface. Overall, this has created an unusually high concentration of rutile in the weathering profile known as a residual placer. It occurs in the form of a 20-25m thick blanket of mineralisation hosted within soft, friable and free-dig saprolite material. Initial assessments by Sovereigns geological team indicate substantial potential for saprolite-hosted, residual rutile placer mineralisation across the Companys large >4,000km2 ground holding in Malawi.
As a comparison, Iluka Resources controls the worlds largest and highest-grade primary rutile mining operation in Sierra Leone, Sierra Rutile. The global resources of Sierra Rutile are reported as 714Mt (at) 1.1% rutile2. These deposits were formed as a result of weathering and erosion of paragneiss which crops out in areas proximal to the mining operations3. The rutile grains were transported a short distance by alluvial action and deposited into placers. This is reflected by the relatively low levels of sorting, wide grain size distribution and high angularity of the rutile grains. Rutile from Sierra Rutile is considered a premium product due to low impurities and its high angularity. This product is favoured by consumers for its potential to create a higher-quality end product with less waste4.
RUTILE MARKET
The titanium dioxide (TiO2) minerals rutile, leucoxene and ilmenite are the principal feedstock for pigment production. Natural rutile is the highest grade feedstock for manufacturing TiO2 pigment and producing titanium metal. Titanium pigments are used in paints, coatings and plastics. Titanium also has specialty uses including welding electrodes, commercial aerospace and military applications.
According to the worlds largest rutile producer, Iluka Resources, global supplies of natural rutile are in structural deficit5. Iluka sees continued growth in demand for high-grade titanium feedstocks over 2019 and is physically unable to satisfy all requests for feedstock in both the high-grade titanium and ilmenite segments of the market. Ilukas contract prices for rutile exceed US$1,100/t to pigment manufacturers and up to US$1,300/t to small lot customers5 (welding and sponge).
NEXT STEPS
These exciting results indicate that Sovereigns >4,000km2 ground package has the potential to host a new rutile province capable of supplying commercial specification at a time of decreasing supply. Accordingly, the Company is undertaking an accelerated work program over the coming months. Metallurgical work in progress at Australian laboratories includes analysis related to yields of rutile product and deportment i.e. grain size distribution and shape. Major elements of the work program include:
- Hand auger drilling to define discrete areas of mineralisation for future resource definition
- Regional soil sampling and panning to identify new areas of rutile mineralisation
- Continuing metallurgical test-work at two Australian laboratories designed to optimise and validate the metallurgical flowsheet at a larger scale and produce marketable rutile samples for initial market sounding
SOVEREIGN OVERVIEW
Sovereign controls a large ground package of over 4,000km2 which contains the Malingunde saprolite-hosted graphite project and newly identified areas of rutile mineralisation. The Company is completing the DFS on the Malingunde graphite deposit whilst also actively assessing the potential for commercial rutile operations from deposits potentially hosted within the soft, saprolite material.
https://www.irw-press.at/prcom/images/messages/2019/47128/190624 ASX - High Quality Rutile FINAL_PRCOM.003.jpeg
Figure 3. Map showing areas of confirmed rutile mineralisation. The sample used for this metallurgical work is from the Wofiira Zone.
Competent Persons Statements
The information in this report that relates to Exploration Results is based on information compiled by Dr Julian Stephens, a Competent Person who is a member of the Australian Institute of Geoscientists (AIG). Dr Stephens is the Managing Director of Sovereign Metals Limited and a holder of ordinary shares and unlisted options in Sovereign Metals Limited. Dr Stephens has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the ''Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves''. Dr Stephens consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
The information in this report that relates to Metallurgical Test work Results is based on information compiled by Mr Gavin Diener, a Competent Person who is a member of the AusIMM. Mr Diener is a Director of Allied Mineral Laboratories Pty Ltd (AML), an independent mineral sands laboratory and is not a holder of any equity type in Sovereign Metals Limited. Mr Diener has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken, to qualify as a Competent Person as defined in the 2012 Edition of the ''Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves''. Mr Diener consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
Forward Looking Statement
This release may include forward-looking statements, which may be identified by words such as "expects", "anticipates", "believes", "projects", "plans", and similar expressions. These forward-looking statements are based on Sovereigns expectations and beliefs concerning future events. Forward looking statements are necessarily subject to risks, uncertainties and other factors, many of which are outside the control of Sovereign, which could cause actual results to differ materially from such statements. There can be no assurance that forward-looking statements will prove to be correct. Sovereign makes no undertaking to subsequently update or revise the forward-looking statements made in this release, to reflect the circumstances or events after the date of that release.
References
1. Force, E.R., 1980. The Provenance of Rutile. Journal of Sedimentary Petrology, Vol. 50, No. 2.
2. Iluka Resources Limited. Full Year Results to 31 December 2018.
3. Titanium Resources Group 2005. AIM Admission Prospectus - Competent Persons Report.
4. Industrial Minerals Magazine 2015. Interview with Sierra Rutile Management.
5. Iluka Resources Limited. Quarterly Review, 31 March 2019.
Appendix 1: JORC Code, 2012 Edition - Table 1
SECTION 1 - SAMPLING TECHNIQUES AND DATA
Criteri JORC Hand Auger Drilling Commentary
a Code
explanati
on
SamplinNature A cluster of 10 Hand auger holes of 62mm
g and diameter were drilled to obtain samples for
Techni quality
ques of this metallurgical test work. These holes
sampling were sampled vertically from surface at
(e.g. nominal 1-metre intervals, with all material
cut being
channels, sampled.
random
chips,
or
specific
specialis
ed
industry
standard
measureme
nt tools
appropria
te to the
minerals
under
investiga
tion,
such as
down
hole gamma
sondes,
or
handheld
XRF
instrumen
ts, etc).
These
examples
should
not be
taken as
limiting
the
broad
meaning
of
sampling.
Include Each vertical metre composite was passed
reference through a standard Jones
to 50:
measures 50 riffle splitter for retention of a library
taken to sample of approximately
ensure 2kg
sample mass. The main sample and 2kg sub samples are
considered representative for this style of
representi rutile
vity mineralisation.
and the
appropria
te
calibrati
on of any
measureme
nt tools
or
systems
used.
Aspects Weathering and lithological information logged
of the from the 1-metre auger sample
determina
tion of was used to define the compositing interval.
mineralis
ation
that are
Material
to the
Public
Report.
In cases
where
industry
standard
work has
been
done
this
would be
relativel
y simple
(e.g.
reverse
circulati
on
drilling
was used
to
obtain 1
m
samples
from
which 3
kg was
pulverise
d to
produce
a 30 g
charge
for fire
assay).
In other
cases
more
explanati
on may be
required,
such
as where
there is
coarse
gold
that has
inherent
sampling
problems.
Unusual
commoditi
es or
mineralis
ation
types
(e.g.
submarine
nodules)
may
warrant
disclosur
e of
detailed
informati
on.
DrillinDrill 62mm diameter hand auger bits are used with
g type 1-metre long steel rods. Each 1m of auger
Techni (e.g. drill advance sample is collected into
ques core, separate bulk sample bags and set aside. The
reverse auger bits and flights are cleaned between
circulati each metre of sampling to avoid
on, contamination.
openhole
hammer,
rotary
air
blast,
auger,
Bangka,
sonic,
etc) and
details
(e.g.
core
diameter,
triple
or
standard
tube,
depth of
diamond
tails,
facesamp
ling bit
or other
type,
whether
core is
oriented
and if
so, by
what
method,
etc).
Drill Method of Samples are assessed visually for recoveries.
Sample recording Overall, recovery is very good.
Recove and
ry assessing
core and
chip
sample
recoverie
s and
results
assessed.
Measures The companys trained geologists supervise
taken to auger drilling on a 1
maximise team :1 geologist basis and are responsible
sample for monitoring all aspects of the drilling
recovery and sampling
and
ensure process.
represent
ative
nature
of the
samples.
Whether a No bias related to preferential loss or gain
relations of different materials has
hip occurred.
exists
between
sample
recovery
and
grade
and
whether
sample
bias may
have
occurred
due to
preferent
ial
loss/gain
of
fine/coar
se
material.
LoggingWhether All individual 1-metre auger intervals are
core and geologically logged, recording relevant data
chip to a set template using company codes. A
samples small representative sample is collected for
have each 1m interval and placed in appropriately
been labelled chip tray for future reference.
geologica
lly and
geotechni
cally
logged
to a
level of
detail
to
support
appropria
te
Mineral
Resource
estimatio
n mining
studies
and
metallurg
ical
studies.
Whether All logging includes lithological features and
logging estimates of
is
qualitatibasic mineralogy. Logging is generally
ve or qualitative.
quantitat
ive in
nature.
Core (or
costean,
channel,
etc.)
photograph
y.
The total 100% samples are geologically logged.
length
and
percentag
e of the
relevant
intersect
ion
logged
Sub-samIf core, Not applicable - not core drilling
pling whether
techni cut or
ques sawn and
and whether
sample quarter,
prepar half or
ation all core
taken.
If Samples from the 10 auger holes drilled were
non-core, composited for each vertical metre over the
whether interval of interest (i.e. 6-7m, 7-8m, etc to
riffled, 11-12m). Each vertical metre
tube
sampled, sample was passed through a standard Jones
rotary 50:50 riffle splitter for retention of a
split, library sample of approximately 2kg
etc. and mass.
whether
sampled
wet or
dry.
For all Use of the Jones splitter is deemed
sample appropriate given the
types,
the mostly dry nature of the samples.
nature,
quality
and
appropria
teness of
the
sample
preparati
on
technique
.
Quality The splitter was cleaned after each sample.
control
procedure
s adopted
for all
sub-sampl
ing
stages
to
maximise
representi
vity
of
samples.
Measures Use of the Jones splitter is deemed
taken to appropriate given
ensure the
that the mostly dry nature of the sample.
sampling
is
represent
ative of
the in
situ
material
collected
,
including
for
instance
results
for field
duplicate
/second-ha
lf
sampling.
Whether The sample size is considered appropriate for
sample the material
sizes sampled.
are
appropria
te to the
grain
size of
the
material
being
sampled.
QualityThe The laboratory procedures are considered to be
of nature, appropriate for reporting
assay quality
data and recovered rutile grades. Further work is
and appropria required in order to develop methods to
laborateness of accurately estimate rutile content from
tory the routine exploration samples.
tests assaying
and
laboratorThe following workflow was created to assess
y the suitability of the bulk sample to
procedure generate a high-grade rutile
s used product
and ;
whether · Wet screen at 2mm and 38µm to remove
the oversize and
technique
is slimes material
considere· Pass 38µm -2mm fraction through Upcurrent Cla
d partial ssifier
or (UCC)
total.
· Pass UCC underflow (i.e. denser materials)
across series of wet tables to generate a
heavy mineral concentrate
(HMC)
· Light acid wash of HMC comprising sulphuric
acid which is then rinsed to remove acid
component
· Attrition HMC in water using Freevis reagent,
then
deslime and dry
· Dry separation circuit comprising a 3 stage
electrostatic circuit followed
by magnetic separation
Subsamples were obtained at all parts of the
flowsheet of the product and waste streams in
order to allow a full mass and chemical
balance to be undertaken. Subsamples were
taken by splitting the relevant materials
using a Jones riffle splitter.
Chemical analysis comprised XRF analysis by
ALS using the method as
follows.
Each entire sample crushed to nominally 100%
-3mm in a Boyd crusher then pulverised to 85%
-75µm using a Tungsten Carbide ring mill.
Approximately 0.7g of pulverised sample is
fused with a Lithium Borate flux mixture to
produce a glass fusion bead and is analysed
via XRFS (X-Ray Fluorescence
Spectrometry).
Calibration is effected by standard glass
beads of known composition of both internal
and certified sources. Corrections are made
for the catch weights, instrumental drift,
line overlaps and inter element enhancement /
absorption effects as well as
moisture.
For No non-laboratory devices were used for
geophysic analysis.
al tools,
spectrome
ters,
handheld
XRF
instrumen
ts, etc.,
the
parameter
s
used in
determini
ng the
analysis
including
instrumen
t make
and
model,
reading
times,
calibrati
ons
factors
applied
and
their
derivatio
n,
etc.
Nature of Internal XRF standards were used by ALS. No
quality interrogation has been undertaken on these
control s
proceduretandards in this case.
s adopted
(e.g.
standards
, blanks,
duplicate
,
external
laborator
y checks)
and
whether
acceptabl
e levels
of
accuracy
(i.e.
lack of
bias)
and
precision
have
been
establish
ed.
VerificThe Significant mineralisation intersections were
ation verificat verified by qualified, alternative company
of ion of personnel.
sampli significa
ng & nt
assayi intersect
ng ions by
either
independe
nt or
alternati
ve
company
personnel
.
The use The cluster of 10 hand auger holes termed MGHC0
of 001
twinned twinned exploration hole MGHA0967.
holes.
DocumentatAll data was collected initially on paper
ion of logging sheets and codified to the Company''s
primary templates. This data was hand entered to
data, spreadsheets and validated by Company
data geologists. This data was then imported to a
entry Microsoft Access Database then validated
automatically and
procedures manually.
, data
verificat
ion, data
storage
(physical
and
electroni
c)
protocols
.
Discuss No assay adjustment has occurred.
any
adjustmen
t to
assay
data.
LocatioAccuracy A Trimble R2 Differential GPS was used to pick
n of and up the bulk of the hand auger collars
data quality containing significant mineralisation. A
points of smaller number of samples were surveyed using
surveys a standard hand held GPS.
used to
locate
drill No downhole surveying of auger holes is
holes completed. Given the vertical nature and
(collar shallow depths of the auger holes drill
and
down-holehole deviation is not considered to
surveys), significantly affect the downhole location of
trenches, samples.
mine
workings
and
other
locations
used in
Mineral
Resource
estimatio
n.
SpecificatWGS84 UTM Zone 36 South.
ion of
the grid
system
used.
Quality DGPS pickups are considered adequate
and topographic control (metres above mean sea
adequacy level)
of .
topograph
ic
control.
Data Data In this particular case the cluster of 10
spacin spacing auger holes within 5 metres of the existing
g & for auger hole for the purpose of metallurgical
distri reporting sample
bution of collection
Explorati. It was deemed that this sample should be
on broadly representative of the mineralisation
Results. style in the area in general, although it is
essentially a single point
sample.
Whether Not applicable, no Mineral Resource or Ore
the data Reserve estimations are covered by new data
spacing in this report.
and
distributIn this particular case the cluster of 10
ion is auger holes
sufficien
t to was drilled within 5 metres of the initial
establish existing auger hole for the purpose of
the metallurgical sample collection. It was
degree deemed that this sample should be broadly
of representative of the mineralisation style in
geologica the area in general, although it is
l and essentially a single point
grade sample
continuit.
y
appropria
te for
the
Mineral
Resource
and Ore
Reserve
estimatio
n
procedure
(s) and
classific
ations
applied.
Whether Individual 1-metre auger intervals have been
sample composited over the interval of interest
compositi (6-12m) for the 10 auger holes
ng has
been drilled in order to obtain a bulk sample of ~18
applied. 0
kg mass for metallurgical test work.
OrientaWhether No bias attributable to orientation of
tion the sampling has been identified.
of orientati
data on of
in sampling
relati achieves
on to unbiased
geolog sampling
ical of
struct possible
ure structure
s and the
extent
to which
this is
known
consideri
ng the
deposit
type
If the No bias attributable to orientation of
relations drilling has been identified.
hip
between
the
drilling
orientati
on and
the
orientati
on of key
mineralis
ed
structure
s is
considere
d to have
introduce
d a
sampling
bias,
this
should
be
assessed
and
reported
if
material.
Sample The Samples were stored in secure storage from the
securi measures time of drilling, through gathering and
ty taken to splitting. The samples were sealed as soon
ensure as splitting was completed, and again
sample securely stored awaiting
security shipment.
Audits The It is considered by the Company that industry
or results best practice methods have been
of
reviews employed at all stages of the exploration.
any
audits
or
reviews
of
sampling
technique
s and
data
SECTION 2 - REPORTING OF EXPLORATION RESULTS
Criteria Explanation Commentary
Mineral Type, reference The Company owns 100% of 5 Exclusive
tenement name/number, Prospecting Licences (EPLs) in
& land location and Malawi. EPL0355 renewed in 2017 for
tenure ownership 2 years, EPL0372 renewed in 2018 for
status including 2 years and EPL0413 renewed in 2017
agreements or for 2 years. EPL0492 and EPL0528
material were granted in 2018 for an initial
issues with period of three years
third parties (renewable).
such as joint
ventures,
partnerships,
overriding
royalties,
native title
interests,
historical
sites,
wilderness or
national park
and
environment
settings.
The security of The tenements are in good standing
the tenure and no known impediments to
held at the exploration or mining
time of exist.
reporting
along with any
known
impediments to
obtaining a
licence to
operate in the
area.
ExploratiAcknowledgement No other parties were involved in
on done and appraisal exploration.
by of exploration
other by other
parties parties.
Geology Deposit type, The rutile deposit type could be
geological termed
setting and
style of a residual placer formed by the
mineralisation intense weathering of rutile-rich
basement
paragneisses.
Rutile occurs in a mostly topographica
lly flat area west of Malawis
capital known as the Lilongwe Plain
where a deep tropical weathering
profile is preserved. A typical
profile from top to base is
generally soil (SOIL 0-1m)
ferruginous
pedolith (FERP, 1-4m), mottled zone
(MOTT, 4-7m), pallid
saprolite (PSAP, 7-9m), saprolite (
SAPL, 9-25m),
saprock (SAPR, 25-35m) and fresh
rock (FRESH
>35m).
Drill A summary of A total of 10 auger holes were
hole all clustered around an existing
informat information
ion material to drillhole (MGHA0967). The cluster of
the holes, given their close proximity
understanding (<5m apart) have been given
of the
exploration averaged joint collar information:
results Hole ID : MGHC0001
including a Easting: 572318
tabulation of Northing: 8436400
the following RL: 1131
information Depth: 17m
for all
Material drill The sample for test work composited
holes: easting from material at depths of
and northings 6-12m
of the drill
hole collar;
elevation or RL
(Reduced
Level-elevation
above sea
level in
metres of the
drill hole
collar); dip
and azimuth of
the hole; down
hole length
and
interception
depth; and
hole
length
If the No information has been excluded.
exclusion of
this
information is
justified on
the basis that
the
information is
not Material
and this
exclusion does
not detract
from the
understanding
of the report,
the Competent
Person should
clearly
explain why
this is the
case
Data In reporting No grade weighting or lower or upper
aggregat Exploration cuts were
ion Results, used.
methods weighting
averaging
techniques,
maximum and/or
minimum grade
truncations
(e.g. cutting
of
high-grades)
and cut-off
grades are
usually
Material and
should be
stated.
Where aggregate The single intercept taken from 6-12m
intercepts vertical depths is considered a
incorporate single sample with no upper or lower
short lengths cuts.
of high-grade
results and
longer lengths
of low grade
results, the
procedure used
for such
aggregation
should be
stated and
some typical
examples of
such
aggregations
should be
shown in
detail.
The assumptions No metal equivalent values are used
used for any in this
reporting of report.
metal
equivalent
values should
be clearly
stated.
RelationsThese It is considered that the
hip relationships mineralisation lies in laterally
between are extensive, near surface, flat
minerali particularly blanket style bodies in areas
sation important in where the entire weathering profile
widths the reporting is preserved and not significantly
& of Exploration eroded.
intercep Results.
t
lengths
If the geometry The mineralisation lies in laterally
of the extensive, near surface, flat
mineralisation blanket style
with respect bodies.
to the drill
hole angle is
known, its
nature should
be
reported.
If it is not Downhole widths approximate true
known and only widths, though all
the down hole
lengths are mineralisation currently remains open
reported, at
there should depth
be a clear .
statement to
this effect
(e.g. ''down
hole length,
true width not
known''.
Diagrams Appropriate Refer to figures in the body of this
maps and report.
sections (with
scales) and
tabulations of
intercepts
should be
included for
any
significant
discovery
being
reported.
These should
include, but
not be limited
to a plan view
of the drill
collar
locations and
appropriate
sectional
views.
Balanced Where All results have been reported in
reportin comprehensive this
g reporting of report.
all
Exploration
Results is not
practicable,
representative
reporting of
both low and
high-grades
and/or widths
should be
practiced to
avoid
misleading
reporting of
exploration
results.
Other Other Rutile has been determined to be the
substant exploration major
ive data, if TiO
explorat meaningful and 2-bearing mineral at and around the Wo
ion material, fiira rutile prospect and within the
data should be
reported Malingunde graphite deposit area
including (but through mineralogy and sighter
not limited metallurgy test-work reported in
to: geological 2018.
observations;
geophysical The company is currently examining
survey other areas within the large
results; tenement package for rutile
geochemical mineralisation.
survey
results; bulk
samples - size
and method of
treatment;
metallurgical
test results;
bulk density,
groundwater,
geotechnical
and rock
characteristics
; potential
deleterious or
contaminating
substances.
Further The nature and Commencement of additional
work scale of mineralogical and metallurgical
planned test-work on samples from each of
further work the significant mineralised areas to
(e.g. test for assess mineralogy, recoverable
lateral rutile percentages, improve
extensions or
depth recovered rutile grades, determine
extensions or the potential to produce other
large-scale mineral
step-out by-products
drilling). and further develop the flowsheet.
Further analyses of historical drill
samples to expand areas of known
rutile
mineralisation.
Regional hand-auger drilling to
attempt to delineate an initial
rutile resource, if warranted, and
further understand the regional
distribution of
rutile.
Diagrams Refer to diagrams in the body of this
clearly report.
highlighting
the areas of
possible
extensions,
including the
main
geological
interpretations
and future
drilling
areas,
provided this
information is
not
commercially
sensitive.
Themen in dieser Pressemitteilung:
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Datum: 24.06.2019 - 06:04 Uhr
Sprache: Deutsch
News-ID 1550135
Anzahl Zeichen: 2806
contact information:
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"Sovereign Metals Limited: Outstanding Metallurgical Results from Emerging Rutile Province
"
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