The chalcostibite is pseudomorphing to azurite. The distinctive blue and black is unique. These chalcostibites are superior to the recent French ones tauted as world's finest.
Habit:
Long prisms to 15cm
Colour:
grey black
UV Fluorescence:
none
Quality of samples:
Excellent - world class for species or very significant. (!!)
Confirmation
Validity:
Believed Valid
References
References:
Gramaccioli, C. M., 1985. Conoscere i minerali. I solfosali. Istituto Geografico De Agostini, Novara, 96 pp
