Olmiite with Calcite
N'Chwaning II Mine, upper levels, Kuruman, Kalahari, South Africa
34mm x 23mm x 38mm
A novelty of Tucson 2009. Unusual groups of crystals of irregular contour, more or less oval-shaped. They are pink, and more intense on the terminations. They are on very acute scalenohedrons of Calcite and on matrix. They have come from a single geode. At first we believed they could be Poldervaartite due to the presence of the accompanying Calcite and the pinkish color of the crystals, but the analysis confirms that they are Olmiite (the manganoan end of the series) and not Poldervaartite (the calcian end). Well send a copy of the analysis to the buyer of the sample.The specimen has been reviewed, photographed and published as a new discovery in the magazine Mineral Up on page 29 in number 2009/2.$245 *
Data last checked on 17th May 2013 - specimen may no longer be available
Buy now from Fabre Minerals
From: Fabre Minerals
Ref: TM96N2
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