Fluorite and Quartz with Calcite

A gorgeous mint green cubic fluorite encased in quartz. This appears to be a floater specimen, as the back is coated with platey calcites and the fluorite has realized its full form.  The fluorite is near gem clear. on the surficial face. One small cleave of one corner of the fluorite.

Locality: Yaogangshen Mine, Chenzhou, Hunan Province, China

Composition: calcium fluoride and silicon dioxide