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Martyite

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JYJ668120

Martyite

Description Tabs

Description
Locality: 
Little Eva Mine, Yellow Cat Mesa, Grand County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 3.3 × 2.5 cm
Description

A very rich sample hosting the rare mineral martyite (Raman conf.) over an area of approx. 1.5x1cm. 

The other side of the sample also features colourless rossite (P-XRD conf. and minor calciodelrioite). 

A good indicator for the related Co rich analogon karpenkoite appears to be the presence of cobaltomenite, whereas the absence often means a dominance of Zn (martyite) over Co. The kation exchange can be monitored by the shift of the main peak towards smaller wave numbers for Co. 

 

Mineral Data
What's on the rock

Martyite

Formula: 
Zn3(V2O7)(OH)2·2H2O
Strunz: 
8.FD.05
Hardness: 
3.0
Type Locality: 
Blue Cap Mine, Lyon Canyon Creek, La Sal District (Paradox Valley District), San Juan Co., Utah, USA