Versiliaite 

Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy

Black rectangular crystal sections of iron-antimony-oxysulphide mineral Versiliaite. Versiliaite is a very rare one locality mineral, occurs only at Buca della Vena Mine in the Apuan Alps.

The specimen size 0,6 cm x 0,5 cm x 0,4 cm 

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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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