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Gerhardtite

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UVM709870

Gerhardtite

New Discovery

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Description
Locality: 
Tenke Deposit, Tenke-Fungurume, Kolwezi, Lualaba, DR Congo
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.2 × 2.2 cm
Description

A nice blue cleavage with possible crystal faces of gerhardtite in cuprite matrix.   This was newly discovered material, and there has been some debate whether this material is gerhardtite or rouaite.   Studies at the University of Arizona suggest it is gerhardtite, so I am labelling it such.   

Mineral Data
What's on the rock

Gerhardtite

Formula: 
Cu2(NO3)(OH)3
Strunz: 
5.NB.05
Crystal System: 
Orthorhombic
Hardness: 
2.0
Type Locality: 
United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA

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