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Hureaulite on Barbosalite

#45272

Hureaulite on Barbosalite

#45272
Availability
Sold
Size
3.5 x 2 x 2 cm - Miniature 
Formula
Mn2+5(PO4)2(PO3OH)2·4H2O (RRUFF)
Locality
Sao Jose da Safira, Doce valley, Minas Gerais, Brazil
Tagged
phosphate , pegmatite mineral

Superb, fine mineral specimen with pinkish red, translucent crystals of Hureaulite to 8mm in divergent groups and showing excellent terminations. It is associated with 0.5mm crystals of equant, shiny black Barbosalite crystals, which also comprises the matrix.

This specimen was featured as an entry in the Barlow book on page 142 (specimen 2557) and comes with the tag.

Hureaulite

Formula
Mn2+5(PO4)2(PO3OH)2·4H2
Crystal System
Monoclinic 
Crystal Habit
Massive, Compact, Fibrous 
Cleavage
Distinct, None, None 
Luster
Vitreous - Greasy 
Color
red, white, grayish white, yellowish white, reddish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness

Data courtesy of Webmineral.

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