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Eurekadumpite & Mcalpineite

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JYJ677780

Eurekadumpite & Mcalpineite

EDS confirmed specimen!

Description Tabs

Description
Locality: 
Centennial Eureka Mine, Eureka, Tintic, Juab County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.2 × 0.9 cm
Description

Greenish-blue eurekdumpite and green mcalpineite on quartz. SEM-EDS confirmed specimen.

 

Mineral Data
What's on the rock

Eurekadumpite

Formula: 
(Cu,Zn)16(TeO3)2(AsO4)3Cl(OH)18 ·7H2O
Hardness: 
2.5 - 3.0
Type Locality: 
Centennial Eureka Mine (Blue Rock), Eureka, Tintic District, East Tintic Mts, Juab Co., Utah, USA

Mcalpineite

Formula: 
Cu3(Te6+O6)
Strunz: 
7.DE.55
Crystal System: 
Isometric
Hardness: 
3.0
Colour: 
Green
Type Locality: 
McAlpine Mine, Peñon Blanco Peak, Coulterville District, Mother Lode Belt, Tuolumne Co., California, USA