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1 item @ $25.00  
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Tapiolite-(Fe)

#65669
SOLD
Tapiolite-(Fe) from Quixaba pegmatite, Frei Martinho, Paraiba, Brazil - 65669
Tapiolite-(Fe) from Quixaba pegmatite, Frei Martinho, Paraiba, Brazil - 65669

Tapiolite-(Fe)

#65669
Availability
Sold
Size
3.5 x 2.5 x 3 cm - Miniature 
Formula
Fe2+Ta2O6 (RRUFF)
Locality
Quixaba pegmatite, Frei Martinho, Paraiba, Brazil
Tagged
pegmatite mineral

This is an excellent crystal of Tapiolite-(Fe) from the stock of the late Luiz Menezes. There are several faces to the crystal, which is somewhat mal-formed probably due to restrictions of opposing crystallizing minerals. It measures 1cm. Tapiolite is a rare mineral and seldom seen at this large scale.

Tapiolite-(Fe)

Formula
Fe2+Ta2O6 
Crystal System
Tetragonal 
Crystal Habit
Granular, Disseminated 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
brownish black, black 
Streak
brown 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle 
Hardness
6 

Data courtesy of Webmineral.

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