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Demicheleite-(I)

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SMM943685

Demicheleite-(I)

Rare Mineral from Type Locality
Analysed

Description Tabs

Description
Locality: 
La Fossa Crater, Vulcano Island, Messina Province, Sicily, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.3 × 1.3 cm
Description

In this excellent sample of demicheleite-(I), an extremely rare species, there are many black crystals over multiple areas. Of the three known species of "demicheleite", the other two are Cl and Br dominant, this one of iodine, is the rarest. They come from their type locality and the only one known. An excellent sample. Analyzed by one of the authors.

Boxed with Label
Mineral Data
What's on the rock

Demicheleite-(I)

Formula: 
BiSI
Hardness: 
0.0
Type Locality: 
La Fossa crater, Vulcano Island, Lipari, Eolie Islands (Aeolian Islands), Messina Province, Sicily, Italy

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