Arrowstar Completes Benefication Testing from 105 samples, at Port Snettisham, Alaska, Iron Ore Project
TSX.V: AWS
VANCOUVER, Dec. 11, 2012 /PRNewswire/ – Robert L. Card, President of Arrowstar
Resources Ltd., (TSXV: AWS), (the “Company”) reports that the Company
has commissioned Inspectorate in Vancouver to complete an analysis of
105 rock samples (that included non-magnetite samples) that were
categorized into two batches, the Piling group that is closely located
to the ground magnetic survey high identified near claim 14 of the
property and the Beach group located near Claim 24. Each sample was
tested for Fe and other elemental contents and a Davis Tube test
completed to determine the magnetic component of the iron. The results
are tabulated below:
Snettisham Samples %
Chemical Analysis
Fe S P SiO2 Al2O3 TiO2 V2O5 K2O Na2O CaO MgO Mn Ni Cu LOI
Min 9.99 0.00 0.00 1.71 1.24 0.34 0.03 0.01 0.02 0.66 3.87 0.11 0.00 0.00 0.00
Max 58.35 0.41 2.10 44.06 10.15 6.53 0.57 1.77 1.77 20.65 32.30 0.40 0.05 0.03 10.73
Avg 21.28 0.03 0.41 32.46 5.20 2.55 0.18 0.39 0.27 12.96 13.52 0.18 0.01 0.01 1.33
Std 9.24 0.08 0.53 7.72 1.99 1.28 0.11 0.43 0.27 5.76 7.21 0.06 0.01 0.01 2.59
Mev
-- LOI is loss of ignition, Fe is Total Fe as analysed by XRF
The average Fe of 21% is typical for pyroxenite, and during operations a
mining engineer will be testing the head grade to ensure it meets the
cut off grade. The S, P, SiO2 and Al(2)O(3) grades on samples containing high Fe conformed with commercial grades.
Davis Tube Tests
The 105 samples were crushed and then tested for magnetic attraction to
simulate going over a high speed magnetic drum in production. Because
of the diversity of the samples, this simulated the iron ore input
grade. The results were encouraging, and within the norm for this type
of deposit.
Mag Magnetic Non-Mag
Conc. Concentration
105 % %
samples
min 6.20 11.32
max 88.68 93.80
avg 25.48 74.52
std dev 15.04 15.04
The high non-magnetic silicates reflects the ferro silicates present in
the host pyroxenite. The range of 20-30% Fe Magnetic material is
typical for this style of deposit.
Beneficiation Testing Results
Each of two composites was crushed to four (4) different sizes and
subjected to a magnetic separation process as follows:
6.3 mm (1/4") Permroll Separator
3.4 mm (6 mesh) Permroll Separator
1.7 mm (10 mesh) Permroll Separator
0.15 mm (100 mesh) Sala Separator
The three permroll tests produced a concentrate, middlings and tailings
product, while the Sala test resulted in a concentrate and tailings.
All products were analysed for Fe(3)O(4) (magnetite content). The composite samples were crushed and ground to
0.15 mm (100 mesh) and a significant upgrading occurred compared to
6.3mm to 1.7mm. At this 0.15mm size concentrate grades of 80.0% and
85.2% Fe(3)O(4) were achieved. These are very high and suitable for dry magnetic
separation. We may decide to ship iron concentrate at 100 mesh size to
iron ore concentrators or alternatively put in our own pellitiser for
easier bulk handling or depending on economics make sinter pellets. A
quotation has been received for both pieces of equipment, and a ball
mill or tertiary crusher has been added to the plant configuration to
accommodate these findings.
Test: Sala 1
Sample: Beach Composite - 0.15 mm ( -100 mesh)
Product Weight Assay % Yield
g % % Fe3O4 Fe3O4
Magnetic Product 37.0 37.8 80.0 83.2
Non Magnetic Tails 60.8 62.2 9.8 16.8
Calculated Head 97.7 100.0 36.4 100.0
Test: Sala 2
Sample:Pilings Composite -0.15 mm (-100 mesh)
Product Weight Assay %
Distribution
g % Fe3O4 Fe3O4
%
Magnetic 36.7 85.2 77.9
Product 36.8 62.2
60.8
Non 63.5 63.3 14.0 22.1
Magnetic 60.8 62.2
Tails
Calculated 102.2 100.0 40.1 100.0
Head
Phillip Thomas BSc Geol. MBus, MAIG, a Director and Qualified Person
under National Instrument 43-101, has reviewed and approved the content
of this release but is not permitted to make any NI 43-101 declarations
as he holds the position of Director.
On Behalf of the Board of Directors,
Arrowstar Resources Ltd.
“Robert L. Card”
Robert L. Card
President
“Neither TSX Venture Exchange nor its Regulation Services Provider (as
that term is defined in the policies of the TSX Venture Exchange)
accepts responsibility for the adequacy or accuracy of this release.”
Forward-Looking Statements: This document includes forward-looking statements. Forward-looking
statements include, but are not limited to, statements concerning AWS’s
planned exploration programs and other statements that are not
historical facts. When used in this document, the words such as
“could,” “plan,” “estimate,” “expect,” “intend,” “may,” “potential,”
“should,” and similar expressions are forward-looking statements.
Although AWS believes that its expectations reflected in these forward
looking statements are reasonable, such statements involve risks and
uncertainties and no assurance can be given that actual results will be
consistent with these forward-looking statements. Important factors
that could cause actual results to differ from these forward-looking
statements are disclosed under the heading “Risk Factors” and elsewhere
in the corporation’s periodic filings with Canadian securities
regulators.
SOURCE Arrowstar Resources Ltd.
