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Anhydrite Var Bowel Stone

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PDM999289

Anhydrite Var Bowel Stone

Classic Locality

Description Tabs

Description
Locality: 
Bochnia Salt Mine, Campi, Bochnia County, Malopolskie, Poland
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
10.2 × 6.3 × 2.2 cm
Weight: 
165.00gr
Description

Nice specimen of white microcrystalline banded anhydrite with a pronoun folded structure. This anhydrite variety is known as “Bowel Stone” because it resembles the recurring folds of a bowel. This derives from the coalescence of enterolithic folds, that is characteristic of evaporites and their ductile behaviour during diagenetic disruption of sedimentary structures. This kind of specimens are very uncommon in the marked nowadays. It comes from the Bochnia mine, one of the oldest salt mines in the world, that was established between the 12th and 13th Centuries.

Acquired in 1988 to Stenelux by Wilfred Moorer (1945-2015) #3433.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Anhydrite

Formula: 
CaSO4
Strunz: 
7.AD.30
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Salt mine, Hall valley, Hall, Innsbruck, Inn valley, North Tyrol, Tyrol, Austria

Bowel Stone

Variety Of: 

Anhydrite

Formula: 
CaSO4
Strunz: 
7.AD.30
Hardness: 
3.0 - 3.5
Hardness: 
0.0

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