2.20 Carats Australian Opal Cabochon
- SKU
- Dimensioni (mm)
- 12.820 x 8.330 x 3.210mm
- Peso (cts)
- 2.200
- Treatment
- No Treatment
- Tipo
- Cabochon
- Colori
-
Description
Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. WikipediaColor: Black, Pink, White, Blue, Green, Purple, Yellow, Red, Grey, Orange, BrownLuster: Vitreous, Waxy, PearlyBirthstone zodiac sign: LibraAssociated month: OctoberCrystal system: Amorphous solidChemical formula: SiO₂·nH₂OHardness (Mohs hardness scale): 5.5 – 6.5
- SKU
- Dimensioni (mm)
- 12.820 x 8.330 x 3.210 mm
- Peso (cts)
- 2.200
- Treatment
- No Treatment
- Tipo
- Cabochon
- Colori
-
Description
Opal is a hydrated amorphous form of silica; its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. WikipediaColor: Black, Pink, White, Blue, Green, Purple, Yellow, Red, Grey, Orange, BrownLuster: Vitreous, Waxy, PearlyBirthstone zodiac sign: LibraAssociated month: OctoberCrystal system: Amorphous solidChemical formula: SiO₂·nH₂OHardness (Mohs hardness scale): 5.5 – 6.5
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Positivo
Very beautiful peridot .
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Positivo
Arrived quickly well packaged. Beautiful gem stones. Smooth Transaction. Thank you
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Positivo
Nice stones, safely packed,Everything was marked on the package it helped a lot. thank you for your time Fast shipping.
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Positivo
Nice stones, safely packed,Everything was marked on the package it helped a lot. thank you for your time Fast shipping.
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Positivo
Nice stones, safely packed,Everything was marked on the package it helped a lot. thank you for your time Fast shipping.