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Calcite On Fluorite

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PDM1079453

Calcite On Fluorite

Fluorescent

Description Tabs

Description
Locality: 
Kara Oba, Karaganda Oblast, Kazakhstan
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.2 × 6 × 4.5 cm
Weight: 
178.00gr
Description

Prismatic calcite crystals of hexagonal contour, terminated by a flattened rhombohedron, of a cream yellow colour and moderate lustre. They grew on a rich cluster of highly modified octahedral crystals of fluorite of green colour. Under long UV illumination fluorite gets a moderate blue fluorescence and under short UV, calcite gets a pinkish red fluorescence specially at the terminations.

Specimen of a Dutch collection, built in the 1960’s - 1990’s.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Calcite

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

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

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