1.8" Cobaltaustinite and Roselite on Dolomite - Aghbar Mine, Morocco

This is a beautiful association of green cobaltaustinite aggregates and roselite crystals that formed from cobalt-bearing dolomite, collected from the Aghbar Mine in the Drâa-Tafilalet Region of Morocco.

Roselite is an arsenate mineral in the monoclinic crystal system. It gained its name not from the rose color it generally exhibits, but was in fact named in honor of a German mineralogist by the name of Gustav Rose. However, the name is quite fitting, since roselite typically displays a vitreous rose-red to pink color. Darker crystals have been known to frequently display marked color zoning due to variations in molecular composition.

Roselite has the chemical formula Ca2Co(AsO4)2 · 2H2O, meaning it contains arsenic. While it doesn't pose an immediate health risk from purely handling, ingestion in significant amounts and/or crushing and inhaling roselite can be toxic. For this reason, we suggest washing hands after handling and keeping out of reach of children.

Cobaltaustinite, Roselite & Dolomite var. Cobalt Dolomite
Aghbar Mine, Aghbar, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco
1.8 x 1.6"