Fluorite with Sphalerite from Denton Mine

Fluorite with Sphalerite from USA.
 
 TOP piece beautiful colors and multiple ghosts !
 Piece for discerning collectors .
 Ideal for connoisseurs looking for Fluorites of Excellence .
 It deserves its place in the most refined collections or the most prestigious showcases .
 
 Origin: Denton Mine, Illinois, USA
 Size: 14cm by 10cm by 6.5cm for 1kg06
 Chemical formula: CaF2
 Crystal system: Cubic
 Hardness Mohs scale: 4
 
 Definition:
 Fluorite (or fluorite ) is amineral species composed of calcium fluoride . The different trace ions are at the origin of the multiple colors and colored zonations encountered for this mineral .