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13.2 G&T M ETALLURGICAL S ERVICES L TD. – M AY 2011
Coarsely crushed mineralized material from the Property was delivered by Prophecy
Platinum to G&T for chemical, mineralogical, and metallurgical characterization work.
A composite named Peridotite Composite 1 was created from the sample, and used
for six batch flotation tests. Three rougher flotation tests and three cleaner flotation
tests were carried out. The results from this test work and conclusions were
gathered in G&T’s report entitled, “Metallurgical Assessment of the Wellgreen
Deposit, Yukon Territoy, Canada – KM2833; May 5, 2011”. The results from this
report are discussed below.
13.2.1 MINERALOGICAL WORK
The head grade analysis for Peridotite Composite 1 is presented in Table 13.4. This
sample was relatively low in grade for nickel, copper, platinum, and palladium.
Table 13.4 Chemical Composition of Peridotite Composite 1 (G&T – May 2011)
Element Symbol
Cu
(%)
Ni
(%)
Fe
(%)
Prophecy Platinum Corp. 13-4 1193460500-REP-R0001-02
Wellgreen Project Preliminary Economic Assessment,
Yukon, Canada
S
(%)
Pt
(g/t)
Pd
(g/t)
Co
(%)
Peridotite Composite 1 0.29 0.26 10.3 1.80 0.28 0.25 0.17
The results from the Bulk Mineral Analysis with an estimate of Liberation (BMAL)
from Quantitative Evaluation of Materials by Scanning Electron Microscopy
(QEMSCAN) is presented in Table 13.5. The pentlandyte and chalcopyrite were
0.80% and 0.82% respectively. The most abundant sulphide mineral was pyrrhotite.
The high concentration of pyrrhotite could result in the pyrrhotite diluting the
concentrate grade since it would float along with the pentlandite and chalcopyrite.
One benefit to flotation is that the talc content was low at 0.96%. This level is low
enough that the talc should not become a hinderance to the flotation of the valuable
minerals.
Table 13.5 Mineral Composition of Peridotite Composite 1 (G&T – May 2011)
Minerals
Peridotite
Composite 1
Mineral Content
(%)
Chalcopyrite 0.82
Pentlandite 0.80
Pyrite 0.09
Pyrrhotite 3.32
Magnetite/Hematite 1.36
Goethite 5.64
Quartz 0.04
table continues…