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Calcite Var Strontianite & Fluorite

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ESM666310

Calcite Var Strontianite & Fluorite

Description Tabs

Description
Locality: 
Minerva #1 Mine, Cave-in-Rock, Hardin County, Illinois, United States of America
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 6 × 5 cm
Description

Sprays of lustrous beige coloured calcite needles hosting clusters of fluorite cubes

Mineral Data
What's on the rock

Calcite

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

Strontianite

Formula: 
SrCO3
Strunz: 
5.AB.15
Crystal System: 
Orthorhombic
Hardness: 
3.5
Streak: 
White
Type Locality: 
Strontian, North West Highlands (Argyllshire), Scotland, UK

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