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Strontianite & Calcite

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SKI712781

Strontianite & Calcite

Description Tabs

Description
Locality: 
Hellbach Quarry, Beckum, Münster, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6 × 6 cm
Description

A fine specimen showing a 2.2 cm feather-like aggregate of white curved strontianite crystals surrounded by flattened rhombohedral calcite crystals in a limestone matrix. The Strontianite shows white fluorscence under Uv-light, the calcite red fluorescence. Base is formated by a saw cut.

Mineral Data
What's on the rock

Strontianite

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

Calcite

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

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