5.31 Carats Full Fire Opal Cabochon

246

SKU
Dimensions (mm): 19.940 x 15.370 x 5.910mm
Weight (cts): 5.310
Colours

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. Wikipedia

Color: Black, Pink, White, Blue, Green, Purple, Yellow, Red, Grey, Orange, Brown

Luster: Vitreous, Waxy, Pearly

Birthstone zodiac sign: Libra

Associated month: October

Crystal system: Amorphous solid

Chemical formula: SiO₂·nH₂O

Hardness (Mohs hardness scale): 5.5 – 6.5

SKU
Dimensions (mm): 19.940 x 15.370 x 5.910 mm
Weight (cts): 5.310
Colours

Description

Color: Black, Pink, White, Blue, Green, Purple, Yellow, Red, Grey, Orange, Brown

Luster: Vitreous, Waxy, Pearly

Birthstone zodiac sign: Libra

Associated month: October

Crystal system: Amorphous solid

Chemical formula: SiO₂·nH₂O

Hardness (Mohs hardness scale): 5.5 – 6.5

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michelporcherot
on 2 Apr, 2024

Positive

very nice

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andersonka66
on 18 Mar, 2024

Positive

Arrived quickly well packaged. Beautiful stone. Smooth Transaction. Thank you

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Beautiful nice size gems

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finch
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