Bertrandite Dolomite From my father’s collection originally

From my father’s collection originally

7 cm across

Item # AMETBOL295

there is little to be desired

A rarely seen matrix specimen of Hyalite from San Luis Potosi

Bertrandite Dolomite From my father’s collection originallyBetrandite is a fairly rare beryllium silicate, and crystals are typically small worldwide, usually less than 1 cm. These new specimens from Golconda feature crystals measuring OVER 3 cm(!) which is world class for the species. Not only are these monstrous crystals, but the quality is as good as it gets, showing a glossy vitreous luster and a gorgeous porcelain white hue. This particular piece features a few top quality, highly lustrous, layered