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Frondelite

#57771

Frondelite

#57771
Availability
Sold
Size
4 x 3 x 2.5 cm - Miniature 
Formula
Mn2+Fe3+4(PO4)3(OH)5 (RRUFF)
Locality
Boca Rica mine, Sapucaia, Galiléia, Minas Gerais, Brazil
Tagged
phosphate , pegmatite mineral

Dark reddish brown platy crystals to 1mm in tightly packed radial aggregates.

XRD Confirmed, EDS Confirmed

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.

Special Info
XRD Confirmed
Special Info
EDS Confirmed

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