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Carnallite Sylvite & Halite

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PDM561601

Carnallite Sylvite & Halite

Ex. Bob Janssens Collection.
Fluorescent

Description Tabs

Description
Locality: 
PCS Mine, Rocanville, Saskatchewan, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Museum (18cm plus)
Size: 
19 × 18.5 × 6.5 cm
Description

A big, representative block of halides from the potash mines near the town of Saskatchewan, Canada. The given locality at the original label is Duval-Kil Mines. This coarse-grained potash ore is formed by colourless, partially rounded halite cubes to 2 cm, colourless non-cubic interstitial sylvite, and red coloured interstitial carnallite. A thin layer of grey clay is found between the red carnallite and the other two phases. Uncommon material!.

This is from the collection of Bob Janssens, a Belgian Geologist, who collected the specimen personally in 09/1980.

Mineral Data
What's on the rock

Carnallite

Formula: 
KMgCl3·6H2O
Strunz: 
3.BA.10
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Stassfurt, Stassfurt Potash deposit, Saxony-Anhalt, Germany

Sylvite

Formula: 
KCl
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
1.5 - 2.0
Streak: 
White
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Halite

Formula: 
NaCl
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
2.5
Streak: 
White

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