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Demartinite

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CHA767943

Demartinite

Type Locality

Description Tabs

Description
Locality: 
La Fossa Crater, Vulcano Island, Messina Province, Sicily, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.3 × 1 cm
Description

specimen with many wite crystals of the extremely rare mineral demartinite on matrix, the triangular faces are the faces of the pyramidal prism. the specimen is analysed.

For value the dimension of the crystals I remenber you that the photos of my specimens are taken at 60 enlargement!

 

Mineral Data
What's on the rock

Demartinite

Formula: 
K2[SiF6]
Strunz: 
3.CH.20
Hardness: 
0.0
Type Locality: 
La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy

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