Mineralpedia Details for Arsenolite
Named for the arsenic in the composition. Arsenolite in an uncommon mineral that occurs as a product of the oxidization of arsenic-bearing sulfides in hydrothermal veins and can be formed during mine fires and in burning coal seams and can be found in association with claudetite, realgar, orpiment, erythrite. Localities include in Germany, the Czech Republic, France, England, Greece, Italy, the United States, Canada, among others. Arsenolite has an astringent, sweetish taste, but is extremely toxic and should not be ingested, even out of curiosity. Interestingly, there are no chemical analyses of natural material.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/arsenolite.pdf
Arsenolite from White Caps mine, Nye Co., Nevada, United States
Yellow octahedral Arsenolite crystals to 1mm.
Tiny 1-2mm colorless to orange octahedral crystals of Arsenolite. This specimen is highly toxic! If you buy it, please handle with care and wash your hands after handling.