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Avogadrite

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SKY800787

Avogadrite

Type Locality

Description Tabs

Description
Locality: 
Monte Somma, Vesuvius, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.3 × 0.3 × 0.2 cm
Description

Snall but outstanding yellow orange crystals of the extremely rare cesium mineral avogadrite from the type locality in Monte Somma and only one of the three known localities worldwide.

Cesium minerals are very rare in Nature since only 32 of 5625 known mineral species are cesium containing minerals ! (source Mindat).

In addition , the anion is very rare, the fluoroborate (BF4-). Only 4 mineral species are known with the group BF4- (!) (source Mindat)

 

 

Mineral Data
What's on the rock

Avogadrite

Formula: 
(K,Cs)[BF4]
Strunz: 
3.CA.10
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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