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

Sample
Fraction
Mass Size Distribution (%)
Calculated ESD Particle Size
Mineral Mass (%)
Prophecy Platinum Corporation – Wellgreen Property – Project 50149-001
Table 6: Bulk Modal Analysis of the Overall Composite
Combined
15
+75 um
23.7
75
Sample Sample Fraction Sample Fraction Sample Fraction
Chalcopyrite 1.2 0.1 0.5 0.4 1.0 0.7 1.8
Pyrrhotite 5.8 0.5 2.2 2.9 7.5 2.3 6.2
Pentlandite 1.1 0.1 0.3 0.4 1.1 0.6 1.7
Other Sulphides 0.1 0.0 0.0 0.0 0.0 0.1 0.2
Feldspar 3.4 0.6 2.4 1.3 3.2 1.5 4.2
Orthopyroxene 7.7 2.8 11.8 4.1 10.4 0.9 2.3
Clinopyroxene 12.9 3.4 14.5 5.7 14.7 3.8 10.1
Amphibole 13.0 2.7 11.5 4.4 11.2 5.9 15.8
Mica 1.6 0.8 3.6 0.5 1.3 0.3 0.7
Chlorite/Serpentine 45.7 11.2 47.1 16.5 42.2 18.1 48.5
Talc 3.0 0.6 2.4 1.1 2.8 1.4 3.7
Other Silicates 0.5 0.1 0.4 0.2 0.5 0.2 0.5
Fe Oxides 2.4 0.4 1.8 0.9 2.4 1.0 2.7
Other Oxides 1.1 0.3 1.1 0.5 1.3 0.3 0.9
Carbonates 0.3 0.0 0.2 0.1 0.3 0.1 0.4
Others 0.2 0.0 0.1 0.1 0.2 0.1 0.3
Total 100 23.7 100 39.0 100 37.2 100
SGS Minerals Services
Master Comp
-75/+25 um
39.0
32
-25 um
37.2
7
The LCT-1 Ni cleaner concentrate as well as the rougher tails were submitted for the microprobe work.
The primary focus of the probe work focused on Ni in major gangue minerals however pentlandite and
pyrrhotite were also included to check their contents. The probe results showed there is Ni in the
serpentine and chlorite and some Ni in the pyroxene and amphiboles. The mineral chemistry is provided
in Appendix G.
The cumulative grain size distributions of the main minerals are presented in Figure 2. Pyrrhotite is the
coarsest minerals present. Chalcopyrite and pentlandite are approximately in the same size range. Since
the overall size distribution is coarser than the sulphides, the sulphides are preferentially ground finer
than the silicates.
6