April 14, 2008

Diamondex update Brodeur project


by Jo Black

Diamondex Resources Ltd. provides diamond results from the caustic fusion of 3,068 kg of kimberlite recovered during the core drilling program completed within the Tuwawi, Nanuk and Kuuriaq target areas in 2007 at Diamondex’s Brodeur project in Nunavut.

Twelve inclined and vertically oriented tests totaling 1,336 meters of diamond drilling were undertaken to better define the geometry of the Tuwawi kimberlite body. In all, a total of 2,873 kg (dry laboratory weight) of hypabyssal, fine to medium grained macrocrystic kimberlite was analyzed for microdiamonds by the caustic fusion process. Table 1 lists the sieve data for the 592 diamonds recovered.

The largest stone recovered, 0.237 carat, is described as an intact transparent dodecahedron with dimensions of 4.35 x 4.10 x 2.10 mm. The second largest stone is a fragmented transparent dodecahedron with dimensions of 4.24 x 2.60 x 1.70 mm and a weight of 0.144 carat.

Modeling of the microdiamond results indicates that the stone size versus the cumulative grade plot compares favorably with the results Kennecott Canada Exploration Inc. (KCEI) reported from their 1,521 kg sample from the Tuwawi kimberlite in 2003 and 2004 (18.66 cpht vs. 20.68 cpht). However, it is also significant that the statistical curves indicate a larger sample would yield larger diamonds as well as a higher grade.

At the Nanuk kimberlite cluster, 1,600 metres west-southwest of Tuwawi, six geophysical targets distributed over an area of 2.9 hectares were tested by eight drill holes. Four separate kimberlite bodies were intersected, with 78 kg of kimberlite collected for microdiamond analysis.

Story link: Diamondex update Brodeur project




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