Mineralpedia Details for Geminite
Named after the Latin word gemini, meaning “twins,” as the mineral is often extensively twinned. Localities for Geminite include in France, the Czech Republic, Germany, as well as newer localities in Morocco, and Namibia. This rare mineral occurs in oxidized arsenic-bearing lead-copper deposits at its type locality at Cap Garonne in France, and from mine dumps at a gold-bearing arsenic sulfide deposit at Salisigne, also in France.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/geminite.pdf
Geminite from Jachymov, Erzgegirge, Bohemia, Czech Republic
Light green, variscite green, micro crystalline aggregates in botyoidal forms, with white Arsenolite.