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1 item @ $125.00  

Fluorite with Sphalerite

#AH56099

Fluorite with Sphalerite

#AH56099
Availability
Sold
Size
6 x 5 x 3.5 cm - Sm Cabinet 
Formula
CaF2 (RRUFF)
Locality
Minerva #1 mine, Hardin Co., Illinois, United States

It's hard to see in the photos, but the color of these crystals are an unusual bluish green. The largest crystal is 1.2cm and there are many smaller. The matrix is a deep root beer red. Coverage on the backside also.

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

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection
Mineralpedia
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