Wellgreen Project Preliminary Economic Assessment ... - OTCIQ.com

Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001
1. Sample Receipt and Preparation
Testwork Summary
Two shipments containing a total of three sub-composite samples, originated from the Wellgreen deposit
in Yukon Territory, Canada were received by SGS Vancouver through Prophecy Platinum Corporation.
The three sub-composites (massive sulphide, gabbro, and peridotite) were used to prepare one master
composite for metallurgical testing.
Initially the three sub-composites representing different zones in the mine plan were stage crushed to ¾”.
Splits samples were taken as back-up and stored for future testwork. The remaining three
sub-composites were combined based on the instruction from the client. The ratio of the sub-composites
used to prepare the master composite were 80%, 15%, and 5% for peridotite, gabbro, and massive
sulphide. This master composite sample was then processed further for sample characterization and
metallurgical testing.
The master composite was first riffled to prepare material for Bond ball mill work index test and Abrasion
index test. All remaining master composite material was crushed to minus 10 mesh and split into 2 kg test
charges. A portion of one of the 2 kg test charges was removed for composite characterization.
Later in the program, 120 kg material was received and a High Nickel Composite was prepared. The ratio
of the sub-composites used to prepare the High Nickel Composite were 70%, 13%, and 17% for
peridotite, gabbro, and massive sulphide. The high nickel composite material was then crushed to minus
10 mesh and split into 2 kg test charges.
The complete sample list and sample preparation plan are provided in Appendix A.
2. Material Characterization
2.1. Chemical Analysis
A sub-sample from each composite was submitted for assay of Cu, Ni, NiS, Co, Fe, S, C(t), S, Pt, Pd, Au,
Rh and MgO, as well as complete multi-element ICP Scan. The results are summarized in Tables 4 and 5
and presented in Appendix B.
It is important to note from the Ni and NiS assays; the Ni assay represents the total amount of Ni that is
present, and the sulphide Ni (NiS) is an analytical indicator for the amount of Ni that can actually be
recovered by flotation. Assay results indicate that for the master composite nickel is mainly present as the
sulphide form (88%). A portion of the nickel (about 12%), however, is non-sulphide and most likely in solid
solution with amphiboles, serpentine & amphiboles (substitution in crystal structure). It has been reported
that the nickel content of the silicate minerals is about 0.1 to 0.3% Ni. This portion of nickel cannot be
recovered during sulphide flotation. As a result, maximum achievable nickel recovery in flotation is
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