Miargyrite

Bessie G Mine, La Plata District, La Plata Co., Colorado, USA

Black-red metallic crystalfragment of rare silver-antimony-sulfide miargyryte in white quartzite matrix. Analysed sample, rarely seen mineral from the Cripple Creek

The specimen size 1.4cm x 1.3cm x 1.2cm 

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I’m a professional geologist/mineralogist, with analytical background. Many of my minerals were checked by x-ray diffraction and energy dispersive spectrometry. Some of my specimens comes with the documentation of the analysises.

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