Cts. 2.0 Natural Ethiopian Opal Cabochon - Altezza: 10 mm - Larghezza: 8 mm- 0.4 g

01
giorno
08
ore
17
minuti
48
secondi
Offerta attuale
€ 2
Nessun prezzo di riserva
Antonio Rapisarda
Esperto
Selezionato da Antonio Rapisarda

Ha una laurea magistrale in chimica e 25 anni di esperienza nella consulenza mineraria.

Stima  € 90 - € 130
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Opale etiopica cabochon di Wello con trasparenza che va da opaco a translucido, circa 2,0 carati e 0,40 g, dimensioni 10x8x5 mm.

Riepilogo creato con l’aiuto dell’IA

Descrizione del venditore

Natural Ethiopian Cab Opal
Clarity: from translucent to opaque;


Pictures taken with high resolution camera on different backgrounds in order to depict the opals as realistically as possible.

Worldwide shipping with registered mail and tracking number.



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.

At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. These ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal.


Natural Ethiopian Cab Opal
Clarity: from translucent to opaque;


Pictures taken with high resolution camera on different backgrounds in order to depict the opals as realistically as possible.

Worldwide shipping with registered mail and tracking number.



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.

At microscopic scales, precious opal is composed of silica spheres some 150 to 300 nm in diameter in a hexagonal or cubic close-packed lattice. These ordered silica spheres produce the internal colors by causing the interference and diffraction of light passing through the microstructure of the opal.


Dettagli

Minerale principale
2.0 carats Natural Ethiopian Opal
Forma minerale
Cabochon
Peso
0,4 g
Provenienza (regione/città)
Hello
Paese d’origine
Etiopia
Altezza
10 mm
Larghezza
8 mm
Profondità
5 mm
Venduto da
ItaliaVerificato
2390
Oggetti venduti
100%
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