Opals
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2.79 Carats Australian Opal Cabochon
- SKU
- Dimensioni (mm)
- 15.600 x 8.460 x 3.390mm
- Peso (cts)
- 2.700
- 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)
- 15.600 x 8.460 x 3.390 mm
- Peso (cts)
- 2.700
- 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
| Fornitore di spedizioni | Spedizione in :paese | Spedizione nel resto del mondo |
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| Standard Shipping - Tracked | $16.00 / : giorni giorni | $16.00 / : giorni giorni |
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| DHL | $28.00 / : giorni giorni | $28.00 / : giorni giorni |
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| Registered Shipping | $16.00 / : giorni giorni | $16.00 / : giorni giorni |
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PositivoVery 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.
