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0 item @ $0.00  

Frondelite

#PD55041

Frondelite

#PD55041
Availability
Sold
Size
3 x 2.5 x 2.5 cm - Thumbnail 
Formula
Mn2+Fe3+4(PO4)3(OH)5 (RRUFF)
Locality
Hagendorf-Süd, Oberpfälzer Wald, Bavaria, Germany
Tagged
phosphate , pegmatite mineral

A band of reddish brown to to dark brown of Frondelite/Rockbridgeite 1cm long.

Frondelite

Formula
Mn2+Fe3+4(PO4)3(OH)5 
Crystal System
Orthorhombic 
Cleavage
Perfect, Distinct, Distinct 
Luster
Vitreous - Dull 
Color
brown, brown green, brownish black, green black, dark green 
Streak
brownish gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
4.5 

Data courtesy of Webmineral.

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