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Magnesio-fluoro-arfvedsonite

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ESM836355

Magnesio-fluoro-arfvedsonite

ex. Geuer

Description Tabs

Description
Locality: 
Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.5 × 2 cm
Description

A coating of beige colored micro-needles on amphibol  ( For original close-up photo contact us )

Mineral Data
What's on the rock

Magnesio-fluoro-arfvedsonite

Formula: 
[Na][Na2][Mg4Fe3+][Si8O22](F,OH)2
Strunz: 
9.DE.25
Hardness: 
5.5
Streak: 
Pale grey
Type Locality: 
Vishnevye Mts (Vishnyovye; Cherry), Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...