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Hureaulite with Jahnsite-(CaMnMg)

#PD34526

Hureaulite with Jahnsite-(CaMnMg)

#PD34526
Availability
Sold
Size
8 x 7 x 4 cm - Sm Cabinet 
Formula
Mn2+5(PO4)2(PO3OH)2·4H2O (RRUFF)
Locality
Tip Top mine, Custer Co., South Dakota, United States
Tagged
phosphate

Triphylite matrix specimen with a large cavity which is occupied by countless, light pink and lustrous Hureaulite crystals to 6mm. This specimen is a virtual mineral cafeteria. In association is light purple Leucophosphite, Jahnsite, and micro green Rockbridgeite. Excellent specimen you will enjoy for many hours under the scope. One special note: the leucophosphites are color changers depending upon the light source.

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.

Collection
Phillips Collection

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