September 2005
Surface sampling of the outcropping diamond-bearing Leadbetter conglomerate in the North and Central portions of the property commenced in late September 2006. Sampling was completed by mid-December and the samples were then transported to the processing facility in Ontario.
At each location, approximately 6 tonnes of rock were excavated as outlined in the slide show below. A total of 94 bedrock sites were sampled plus an additional 11 sites where only sand and gravel overburden were sampled. The main aim of the surface sampling program is to confirm the presence of commercial sized diamonds in the outcropping bedrock between the diamond drill holes. At each bedrock site, a surface area of 3 x 2 metres by 1 metre deep was excavated by drilling and blasting or by direct backhoe excavation. At each of the sample sites the excavated material was placed into 6 individual 1 tonne sample bags which were immediately securely sealed.
By the end of December 2005, all the samples were delivered to the SGS – Lakefield facility to undergo DMS (Dense Media Separation) processing to produce diamond-bearing concentrates. Processing commenced in mid-February and the first diamond results were received at the end of April 2006. Diamond results are expected throughout the summer.
Based on the discovery by Mr. Leadbetter of a 1.39 carat gem quality diamond in an alluvial setting, Dianor decided to sample similar unconsolidated material close to the diamond-bearing bedrock to test for the presence of “Alluvial Diamonds” in the sand and gravel. The material was processed on site using standard jigs and the resulting jig concentrates were sent to SGS- Lakefield for diamond recovery by gravity methods. Diamond results are expected by the end of summer.
6 tonne sample location, September 2006
Surface sampling slide show
Surface Bedrock Sample Results Leadbetter Conglomerate, January 2007
Location Map: "6 Tonne" Bedrock Sample Pits, January 2007
Location Map: Overburden Sample Pit, January 2007
Location Map: 10 Largest diamond, January 2007