Opale Andamooka d'Australie naturelle Cts 9.40 - 17×17×3.5 mm - 1.88 g

Description
Opale Andamooka d'Australie naturelle Cts 9.40 - 17×17×3.5 mm - 1.88 g
Andamooka, Australie




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Description

An opal is a hydrated form of silica with a water content ranging from 3 to 21%.Indeed, it is this permeability to water that makes it a hydrophile.
Opals are deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Precious opals show a variable interplay of internal colors.

Informations du lot
Forme minérale / Type météorite
Opale Andamooka d'Australie naturelle Cts 9.40
Supplément
Opale australienne naturelle
Dimensions
17×17×3.5 mm
Poids
1.88 g
Origine (région / ville)
Andamooka
Origine (pays)
Australie
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