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Nepheline & Biotite

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SHS922400

Nepheline & Biotite

Description Tabs

Description
Locality: 
Bellerberg, Ettringen, Eifel Mountains, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2 × 2.2 cm
Description

Nice neoheline crystals with biotite on matrix

Mineral Data
What's on the rock

Nepheline

Formula: 
(Na,K)AlSiO4
Strunz: 
9.FA.05
Hardness: 
5.5 - 6.0
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Biotite

Group Parent: 
Mica Group