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Strontioginorite & Probertite

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CLB126199

Strontioginorite & Probertite

ex Manfred Schaefer coll.
Rare Mineral

Description Tabs

Description
Locality: 
Kohnstein Quarry, Niedersachswerfen, Nordhausen District, Thuringia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.6 × 1.6 cm
Description

Very rare white strontioginorite with colorless shards of probably anhydrite. The free-standing clear crystal is probertite.

Mineral Data
What's on the rock

Strontioginorite

Formula: 
(Sr,Ca)2B14O23·8H2O
Strunz: 
6.FC.15
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Königshall-Hindenburg Mine, Reyershausen, Göttingen, Lower Saxony, Germany

Probertite

Formula: 
NaCaB5O7(OH)4·3H2O
Strunz: 
6.EB.15
Hardness: 
3.5
Streak: 
White
Type Locality: 
Baker mine, U.S. Borax Mine (Pacific West Coast Borax; Pacific Coast Borax Co.; Boron Mine; U.S. Borax and Chemical Corp.; Kramer Mine; Baker Mine), Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA

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