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Tapiolite-(Fe)

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QRI873177

Tapiolite-(Fe)

Rare Mineral

Description Tabs

Description
Locality: 
Rio Graia, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.8 × 4.3 cm
Largest Crystal: 
0.10cm
Weight: 
166.00gr
Description

Two grainy crystals of rare pitch black ferrotapiolite from Rio Graia perched on pegmatitic matrix.
Difficult to get a hold of from this Italian locality. 
It comes with a former Minernet label.

Mineral Data
What's on the rock

Tapiolite-(Fe)

Formula: 
(Fe,Mn)(Ta,Nb)2O6
Strunz: 
4.DB.10
Hardness: 
6.0 - 6.5
Colour: 
Black
Type Locality: 
Tapiolite-(Fe) typelocality, Kulmala, Sukula Pegmatites, Tammela, Southern Finland Region, Finland

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