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Quadridavyne

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CAM89218

Quadridavyne

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Description
Locality: 
Caspar Quarry, Bellerberg, Ettringen, Eifel, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Description

Colourless transparent crystals of the rare silicate quadridavyne on matrix.

Mineral Data
What's on the rock

Quadridavyne

Formula: 
(Na,K)6Ca2(Al6Si6O24)Cl4
Strunz: 
9.FB.05
Crystal System: 
Hexagonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Ottaviano, Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
Cartils Minerals

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