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Nordenskiöldine & Ludwigite

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Nordenskiöldine & Ludwigite

Analysed

Description Tabs

Description
Locality: 
Ear Mountain, York Range, Seward Peninsula, Nome Borough, Alaska, United States of America
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.4 × 1 cm
Description

Nice specimen of very rare, white Nordenskiöldine (fluorescene in SW UV) on matrix with black Ludwigite. Analysed!

Mineral Data
What's on the rock

Nordenskiöldine

Formula: 
CaSn4+[BO3]2
Strunz: 
6.AA.15
Hardness: 
5.5 - 6.0
Type Locality: 
Nordenskiöldine locality, Arøya (Arö), Langesundsfjorden, Larvik, Vestfold, Norway

Ludwigite

Formula: 
Mg2Fe3+(BO3)O2
Strunz: 
6.AB.30
Crystal System: 
Orthorhombic
Hardness: 
5.0
Type Locality: 
Ocna de Fier (Vaskö-Moraviţa; Vaskö-Moravicza; Eisenstein), Ocna de Fier-Dognecea District, Banat Mts, Caraş-Severin Co., Romania

Seller Information

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