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Tantalite-(Mn)

#RW47427
SOLD
Tantalite-(Mn) from Alto do Giz pegmatite, Rio Grande do Norte, Brazil - RW47427
Tantalite-(Mn) from Alto do Giz pegmatite, Rio Grande do Norte, Brazil - RW47427

Tantalite-(Mn)

#RW47427
Availability
Sold
Size
5 x 4.5 x 3 cm - Miniature 
Formula
Mn2+Ta2O6 (RRUFF)
Locality
Alto do Giz pegmatite, Rio Grande do Norte, Brazil

A thick tabular, shiny, very nice crystal of Tantalite. The crystal tapers downward and has many slightly striated faces. 

Tantalite-(Mn)

Formula
Mn2+Ta2O6 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Fine, Massive - Granular, Disseminated 
Cleavage
Imperfect, None, None 
Luster
Sub Metallic 
Color
black, brown 
Streak
brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Brittle - Uneven 
Hardness
6-6.5 

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection
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