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Mineralpedia Details for Parasymplesite

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Parasymplesite

Parasymplesite

Named for its polymorphic relationship to symplesite. Notable localities for Parasymplesite are at Sterling Hill near Franklin in New Jersey, USA, at Mina Ojuela near Mapimi in Durango, Mexico where it is found with other intermediate members of the kottigite-parasymplesite series, at Jachymov in the Czech Republic, at Wittichen and Weiler in the Schwarzwald Mountains in Germany, at Lolling in Carinthia, Australia, at Punta Corna in Piedmont, Italy, in Japan at Kiura in the Oita prefecture, and near Bou Azzer in Morocco. Parasymplesite appears as blue-green to green-black, waxy or oily acicular aggregates, and rarely as complex crystals.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

Formula
Fe2+3(AsO4)2ยท8H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Radial 
Cleavage
Perfect, None, None 
Luster
Silky 
Color
greenish blue, light greenish blue 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
WebMineral
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Parasymplesite from Mina Ojuela, Mapimi, Durango, Mexico

Parasymplesite
            from Mina Ojuela, Mapimi, Durango, Mexico

Bluish grey, submetallic looking, radiating crystals to 8mm.

Click thumbnail images for larger view.

Parasymplesite from Bou Azzer dist., Anti-Atlas, Morocco

Parasymplesite
            from Bou Azzer dist., Anti-Atlas, Morocco

Chocolate brown prismatic crystals to 5mm.

Click thumbnail images for larger view.

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