Zinnwaldite Sphere Ball Russian Stone Gemstone Mineral

Description ZINNWALDITE SPHERE This is the polished zinnwaldite sphere. Diameter: 1.9″ (47mm). Weight – 5.3oz (149 grams). Origin: Russia, Yakutia. Some information about zinnwaldite: Zinnwaldite, potassium lithium iron aluminium silicate hydroxide fluoride, is a silicate mineral in the mica group. It was first described in 1845 in Zinnwald/Cinvald (today Cínovec) on the German-Czech Republic border. It occurs in greisens, pegmatite, and quartz veins often associated with tin ore deposits (More information about zinnwaldite). Here you will find other zinnwaldite spheres >>>