6.14 Carats Full Fire Opal Cabochon

Item Information

Dimensions (mm) 16.2 x 11.42 x 6.75mm
Weight (carats) 6.14 carats


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

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Pricing & Details

Bid Increment $1
Starting Bid $1
Auction ID 1230717
Watchers 2 watching
Viewed 244 times
Starts 22nd Jan 2021 7:05am PST
Ends 24th Jan 2021 7:01am PST

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