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Jahnsite-(Camnfe) with Hureaulite & Rockbridgeite

#BN55076

Jahnsite-(Camnfe) with Hureaulite & Rockbridgeite

#BN55076
Availability
Available
Price
$35.00
Size
3.5 x 3 x 2.5 cm - Miniature 
Formula
CaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2O (RRUFF)
Locality
Fletcher mine, Groton, Grafton Co., New Hampshire, United States
Tagged
phosphate , pegmatite mineral

Yellow formless crystals of Jahnsite-(CaMnFe) in Rockbridgeite matrix with Hureaulite (red). The backside is probably Bermanite.

Jahnsite-(CaMnFe)

Formula
CaMn2+Fe2+2Fe3+2(PO4)4(OH)2·8H2
Crystal System
Monoclinic 
Cleavage
Good, None, None 
Luster
Vitreous - Adamantine 
Color
brown, purplish brown, yellow, yellow orange 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection

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