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Straczekite

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JYJ772020

Straczekite

Description Tabs

Description
Locality: 
Wilson Springs, Garland County, Arkansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.4 × 1.3 cm
Description

Dark greenish-black straczekite on matrix from the Wilsons springs, Arkansas. 

From an old systematic collection. 

 

Mineral Data
What's on the rock

Straczekite

Formula: 
(Ca,K,Ba)(V5+,V4+)8O20·3H2O
Strunz: 
4.HE.20
Hardness: 
1.0 - 2.0
Type Locality: 
North Wilson pit, Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland Co., Arkansas, USA
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