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Fluorite

#65920
Fluorite from Denton mine, Hardin Co., Illinois, United States - 65920
Fluorite from Denton mine, Hardin Co., Illinois, United States - 65920

Fluorite

#65920
Availability
Available
Price
$85.00
Size
7 x 5 x 6 cm - Sm Cabinet 
Formula
CaF2 (RRUFF)
Locality
Denton mine, Hardin Co., Illinois, United States

Display specimen mounted on an acrylic square. It is deep purple in color with an area of Sphalerite crystals at the base. Very nice piece.

Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
4 

Data courtesy of Webmineral.

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