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Strontioginorite & Ulexite

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WLR1030650

Strontioginorite & Ulexite

Description Tabs

Description
Locality: 
Kohnstein Quarry, Niedersachswerfen, Nordhausen District, Thuringia, Germany
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
20.4 × 14.3 × 4.5 cm
Largest Crystal: 
3.40cm
Description

Waterclear, achromatic laths of strontioginorite up to 3.4 cm, the largest on the upper right, elsewise many smaller ones scattered upon the whole piece made of white gypsum-anhydrite matrix. Accompanied by a bundle of fluffy fibrous ulexite of white color in the upper-lefthand corner. Gypsum in the glass-like variety selenite forms the backside of the specimen.

Ex Collection Dr. Siemroth, scientist from Halle, Saxony-Anhalt, Germany who examined and analyzed all minerals from the Kohnstein Quarry.

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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

Ulexite

Formula: 
NaCa[B5O6(OH)6]·5H2O
Strunz: 
6.EA.25
Crystal System: 
Triclinic
Hardness: 
2.5
Type Locality: 
Iquique Province, Tarapacá Region, Chile

Buy Now price

$350
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Shipping Information

Postage Area Price
Germany up to 2 kg
6
Europe up to 2 kg
14
Non-EU up to 2 kg
$24

Seller Information

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