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Gramaccioliite-(Y)

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HEF691517

Gramaccioliite-(Y)

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Description
Locality: 
Sambuco Gramaccioliite Site, Sambuco, Cuneo Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.7 × 1.4 cm
Description

Black crystals of grammaccioliite-y on matrix

Mineral Data
What's on the rock

Gramaccioliite-(Y)

Formula: 
(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38
Strunz: 
4.CC.40
Hardness: 
6.0 - 0.0
Colour: 
black
Streak: 
black
Type Locality: 
Sambuco gramaccioliite site (Sambuco “historical” site), Sambuco, Stura Valley, Cuneo Province, Piedmont, Italy

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