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Mineralpedia Details for Gerhardtite

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Gerhardtite

Gerhardtite

Formula
Cu2NO3(OH)3 
Crystal System
Orthorhombic 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
green, dark green 
Streak
light green 
Class
Orthorhombic - Disphenoidal 
Hardness
WebMineral
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Mindat
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Gerhardtite from Caledonia mine, Ontonagon Co., Michigan, United States

Gerhardtite
            from Caledonia mine, Ontonagon Co., Michigan, United States

Bright blue thin coatings with other unidentified minerals. 

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