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Fluorite & Calcite

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MGR960000

Fluorite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Denton Mine, Harris Creek, Hardin County, Illinois, United States of America
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
10.7 × 6 × 5.3 cm
Description

Great classic from Illinois! The fluorite crystal is very trasnlucent and shows intense tones of blue and violet color. The faces show this typical attractive texture and fine luster. One side is completely covered with glossy, sharp terminated calcite crystals - the contrast is really wonderful! Most of the backside is healed, a small area cleaved. Overall a impressive, colorful and eye-catching specimen!

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White