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Quadridavyne

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CHA510559

Quadridavyne

Rare Mineral

Description Tabs

Description
Locality: 
Somma-Vesuvius, Naples Province, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.4 × 1.2 cm
Description

specimen with many tiny brilliant colourless crystals of the rare quadridavyne on lava matrix from the crater of volcano.

the somma vesuvius is the type locality of this mineral

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

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