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MD-117541 - Andyrobertsite, Calcioandyrobertsite - - Archived Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia miniature, 3.3 x 2.5 x 1 mm.
3.3 x 2.5 x 1 mm. A piece of the only known specimen of Andyrobertsite and Calcio-andyrobertsite (see the Mineralogical Record, Vol. 30, #3, May-June, 1999). The color on this single crystal ranges from a spectacular royal blue (Andyrobertsite) to a beautiful and intense green (Calcio-andyrobertsite), with a superb luster to match. Both are valid species in a series. This specimen was peeled off the TYPE SPECIMEN and so is a HOLOTYPE. This means that it is a validated piece from the type descriptive specimen listed in the scientific records for the species. It is accompanied by the label from William Pinch, who gave it to Charlie as a gift when Bill found out that he had a new species. Bill bought the specimen (said to have been found about 1950) years ago and to this day it is the only one that has turned up. This is a rare trim he peeled off it, for his friend, with documentation. All Content and Design ©1996-2010 The ArkenstonePowered by http://mineralwebsites.comBy-species Galleries | ||
