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Nepheline & Calcite

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SHS182270

Nepheline & Calcite

Description Tabs

Description
Locality: 
Löhley, Üdersdorf, Daun, Eifel, Rhineland-Palatinate, Germany
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.8 × 1.5 cm
Description

Nice nepheline and calcite crystals 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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White