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Mineralpedia Details for Strashimirite

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Strashimirite

Strashimirite

Named in honor of Bulgarian petrographer Strashimir Dimitrov. Occurring in the oxidized zone of copper-arsenic bearing deposits, Strashimirite is a secondary mineral found in dozens of localities including Bulgaria, Switzerland, Germany, France, England, and the USA.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/strashimirite.pdf

Formula
Cu4(AsO4)2(OH)2ยท2.5H2
Crystal System
Monoclinic 
Crystal Habit
Euhedral Crystals, Fibrous, Encrustations 
Luster
Greasy (Oily) 
Color
white, green 
Streak
pale green 
Class
Monoclinic 
Fracture
Uneven 
Hardness
2.5-3 
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Strashimirite from Majuba Hill mine, Pershing Co., Nevada, United States

Strashimirite
            from Majuba Hill mine, Pershing Co., Nevada, United States

Compact faint green Strashimirite balls to 0.75mm.

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Strashimirite from San Rafael mine, Nye Co., Nevada, United States

Strashimirite
            from San Rafael mine, Nye Co., Nevada, United States

Light green, acicular Strashimirite crystals to about 0.75mm with bead-like crystals of Cornwallite.

Velvety crust consisting of finely compact light bluish green Strashimirite crystals in a radial aggregate to about 0.75mm.

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Strashimirite from Burrus mine, Washoe Co., Nevada, United States

Strashimirite
            from Burrus mine, Washoe Co., Nevada, United States

Light mint green tufts of fibrous looking Strashimirite to about 0.25mm.

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