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Samarskite-(Y) & Columbite-(Fe)

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SYA722266

Samarskite-(Y) & Columbite-(Fe)

Description Tabs

Description
Locality: 
Grota da Generosa Mine, Sabinopolis, Minas Gerais, Brazil
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 3 cm
Description

Massive samarskite-(Y) intergrown with massive columbite-(Fe)

The discredited name for this mixture was "annerödite"

Mineral Data
What's on the rock

Samarskite-(Y)

Formula: 
(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Strunz: 
4.DB.25
Hardness: 
5.0 - 6.0
Type Locality: 
Blyumovskaya Pit (Blum Pit; Pit No. 50), Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Columbite-(Fe)

Formula: 
FeNb2O6
Strunz: 
4.DB.35
Hardness: 
6.0
Type Locality: 
Green's Well pegmatite (Green's Tank), Pilgangoora, Wallareenya Station, Port Hedland Shire, Western Australia, Australia...

Seller Information

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