Fluorapophyllite Mineral Beautiful Specimen Pune Distict, India 15.2 oz size 4.5" x 3" Approx ** DONT MISS OUT ON THIS ONE ** *****SPECIAL DEAL ***** SPEND $100 GET A FREE MINERAL OF YOUR CHOICE $35 or less - FREE IF IN STOCK *** ***** THIS IS A LIMITED TIME SPECIAL DEAL ************************** Fluorapophyllite, a member of the apophyllite group, is a hydrothermal mineral, often found as secondary minerals in vesicles or cavities in volcanic rocks like basalt. It's known for its euhedral, highly lustrous crystals and is popular among mineral collectors. Here's a more detailed look at fluorapophyllite: Chemical Formula and Composition: The chemical formula for fluorapophyllite is KCa4Si8O20(F,OH)·8(H2O). It's characterized by having more fluorine than hydroxide compared to other minerals in the apophyllite group. The name "apophyllite" comes from the Greek words "apo" (away from) and "phyllos" (leaf), referring to its tendency to flake apart when heated. ITEM # 273