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

6.2 H ISTORICAL S AMPLE P REPARATION AND A NALYSES P ROGRAMS
6.2.1 HISTORICAL PROGRAMS
Tetra Tech is not aware of the procedures and analytical methods used prior to the
Coronation Minerals’ drilling programs.
6.2.2 CORONATION MINERALS’ PROGRAMS
After the sample bags were sealed, company personnel took the samples into the
Coronation Minerals’ geological office. The samples were stored there and only the
geologist and camp manager had access. When enough samples had accumulated,
company personnel would pack them in plastic containers, label them, and take the
containers to the shipper (Air North) in Whitehorse. Air North would deliver the
samples to ALS Minerals in Vancouver for assaying.
All samples, including field-inserted Standards and Blanks, were sent to ALS
Minerals in Vancouver, BC, for assaying. ALS Minerals has International
Organization for Standardization (ISO)/International Electrotechnical Commission
(IEC) 17025:2005 and ISO 9001:2000 certification.
The samples were assayed for copper, nickel, cobalt, gold, platinum, and palladium.
The following is a brief description of the sample preparation:
1. Samples are sorted into numerical order and then dried.
2. Once dried, the material was crushed using a jaw crusher.
3. The sample is then split to get a 250 g sample for pulverizing.
4. The total 250 g of split sample is pulverized to 85% passing 75 μm.
Gold, platinum, and palladium were assayed by fire assay fusion of 30 g with an
inductively coupled plasma (ICP) finish. The resulting values were reported in parts
per million.
Copper, nickel, and cobalt were assayed by four-acid "near total" digestion atomic
absorption spectrometry (AAS). If any of the assays returned values above the
detection limits, the sample would be re-assayed using a similar method (inductively
coupled plasma atomic emission spectroscopy (ICP-AES) or AAS).
At no time was a Coronation Minerals employee or designate of the company
involved in the preparation or analysis of the samples.
Prophecy Platinum Corp. 6-5 1193460500-REP-R0001-02
Wellgreen Project Preliminary Economic Assessment,
Yukon, Canada