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Mineralpedia Details for Vladimirite

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Vladimirite

Vladimirite

Named for its discovery locality at the Vladimirovskoye deposit in Russia, Vladimirite also shares its type locality with the Khovu-Asky deposit, also in Russia. Found as a secondary mineral in arsenic-bearing deposits’ oxidized zones. Occurs in only a few localities worldwide including, additionally, Germany, Morocco, and in Michigan, USA.

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

Formula
Ca5(AsO4)2(AsO3OH)2ยท5H2
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
colorless, white, light pink 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
3.5 
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Vladimirite from Ait Ahmane, Bou Azzer dist., Morocco

Vladimirite
            from Ait Ahmane, Bou Azzer dist., Morocco Snow white beautiful sprays of Vladimirite, free-standing to 3 -4mm across.
Click thumbnail images for larger view.

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