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Samarskite-(Y) Psm Euxenite-(Y)

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PDM759066

Samarskite-(Y) Psm Euxenite-(Y)

Pseudomorph

Description Tabs

Description
Locality: 
Anjozorobe, Analamanga, Madagascar
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.4 × 0.8 cm
Description

Dark brown crystal of euxenite-(Y) with waxy lustre at the fracture surface, altered to reddish samarskite-(Y) previously known as “ampangabeite”.

Specimen #5427 of the Ennio Contarini collection, it comes with an original label.

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...

Euxenite-(Y)

Formula: 
(Y,Ca,Ce,U,Th)(Nb,Ti,Ta)2O6
Strunz: 
4.DG.05
Hardness: 
5.5 - 6.5
Type Locality: 
Undisclosed pegmatite, Jølster, Sogn og Fjordane, Norway

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