Amazing and Unique Shape Fluorite Minerals 9:09 PM A+ A- Print Email Copyright: Dan Weinrich Fluorite | #Geology Formula: CaF2 System: Isometric Hardness: 4 Colour: various Purple, lilac, ... Lustre: Vitreous, Dull Fluorite Mina Berbes, Ribadesella, Asturien, Spanien.