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Heidornite

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SKY931960

Heidornite

Rare Mineral

Description Tabs

Description
Locality: 
Kohnstein Quarry, Niedersachswerfen, Nordhausen District, Thuringia, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.4 × 0.3 cm
Description

Colorless gemmy single biterminated crystal of the very rare mineral sulphate borate mineral heidornite, from one of the only two known localities worldwide.

Heidornite crystals in this quality are rarely seen in the mineral market.

Ex Dirk Rheinländer collection.

Ex. Erich Laskowski collection

Mineral Data
What's on the rock

Heidornite

Formula: 
Na2Ca3B5O8(SO4)2Cl(OH)2
Strunz: 
6.EC.30
Hardness: 
4.0 - 5.0
Type Locality: 
Frenswegen 3 deep bore, Frenswegen, Nordhorn, Lower Saxony, Germany

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