Opal is a form of silicon dioxide in which many colours, caused by reflections from microcrystalline silica spheres, may be seen when it is turned in the light. Opal is divided into two types – black or white – according to the background colour of the stone. It’s value is determined by the brilliance of the colour, the absence of dead spots and flawlessness. Black opal is considered the finest and those with an abundance of red are the most valuable. Opals which are strong in green and blue are not as rare.
Opal was thought to be a bad omen yet to be a symbol of fidelity and to have the ability to cure diseases of the eye.
Opals tend to dry and crack and benefit from an occasional coating with olive oil.
Opal jewellery available now
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Vintage Gilt Silver Opal Bar Brooch
on March 18, 2019 at 9:14 pm
AU $18.00 (0 Bids)End Date: Tuesday Mar-26-2019 8:14:01 ESTBuy It Now for only: AU $26.00Buy It Now | Bid now | Add to watch list […]
Vintage opal and rubies gold ring
on March 18, 2019 at 9:32 am
AU $19.95 (1 Bid)End Date: Monday Mar-25-2019 20:32:04 ESTBid now | Add to watch list […]
Vintage Little Opal Turquoise Native American Inlay Earrings Sterling Silver
on March 18, 2019 at 4:42 am
AU $119.00End Date: Wednesday Apr-17-2019 14:42:18 ESTBuy It Now for only: AU $119.00Buy It Now | Add to watch list […]
Antique Australian Opal Clasp for Pendant and Chain Joseph Lawrence Melbourne
on March 17, 2019 at 11:26 pm
AU $125.00End Date: Wednesday Apr-17-2019 9:26:11 ESTBuy It Now for only: AU $125.00Buy It Now | Add to watch list […]
Deceased Estate Lot #4
on March 17, 2019 at 10:51 am
AU $41.00 (10 Bids)End Date: Wednesday Mar-27-2019 21:51:05 ESTBid now | Add to watch list […]