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Perloffite in Ludlamite

#BN53829

Perloffite in Ludlamite

#BN53829
Availability
Available
Price
$195.00
Size
Micromount 
Formula
BaMn2+2Fe3+2(PO4)3(OH)3 (RRUFF)
Locality
Big Chief mine, Pennington Co., South Dakota, United States
Tagged
phosphate , pegmatite mineral

Black, sharp, suberb, sharply pointed Perloffite crystals to about 0.75mm in Ludlamite. Very rare barium phosphate. Type Locality.

Type Locality

Perloffite

Formula
BaMn2+2Fe3+2(PO4)3(OH)3 
Crystal System
Monoclinic 
Crystal Habit
Spear Head 
Cleavage
Perfect, None, None 
Luster
Vitreous - Adamantine 
Color
brownish black, greenish brown, dark brown, black 
Streak
greenish yellow 
Class
Monoclinic - Prismatic 
Hardness

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection
Special Info
Type Locality

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