Two of the permits, Ouassat and Arouedil, cover a total of 19,600 sq. km of Archean terrain immediately north of Rex’s Tenoumer and El Hammami permits, in the north-central portion of the West African country.
The third permit, Cheggat, covers a small Archean outcropping at the rim of the Taoudeni Basin in northeastern Mauritania near the border with Algeria and Mali.
Regional sampling at the Tenoumer and El Hammami permits has yielded three microdiamonds (0.5 mm or smaller) plus purple pyrope garnets and chrome diopsides.
At Rex’s nearby Touajil permit, where the company has already found 16 macrodiamonds and 2 microdiamonds, a ground magnetic and electromagnetic survey is being carried out on a 100-by-20-metre grid. Following the survey, circular conductive anomalies will be trenched or drilled.
In April, Rex will test the diamond content of near-surface gravels in the Touajil region. For this work, a jig plant has been shipped from South Africa and soon will arrive on site.
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