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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Gorgeous Vintage Signed CZECH Blue Opal glass CICADA NECKLACE, Art Nouveau
on September 22, 2019 at 10:48 pm
AU $89.95End Date: Wednesday Oct-23-2019 9:48:23 ESTBuy It Now for only: AU $89.95Buy It Now | Add to watch list
Vintage Antique 14k Gold Opal and Diamond Ring
on September 22, 2019 at 12:00 pm
AU $15.50 (6 Bids)End Date: Sunday Sep-29-2019 22:00:04 ESTBid now | Add to watch list
Deceased Estate * Auction Lot #10
on September 22, 2019 at 11:44 am
AU $31.00 (11 Bids)End Date: Wednesday Oct-2-2019 21:44:25 ESTBid now | Add to watch list
Lovely vintage modernist gold plated genuine opal brooch
on September 22, 2019 at 9:03 am
AU $34.00End Date: Tuesday Oct-22-2019 20:03:35 ESTBuy It Now for only: AU $34.00Buy It Now | Add to watch list
Australian Opal Pendant 9ct Yellow Gold Oval Blue Opal In Original Box
on September 22, 2019 at 12:52 am
AU $60.00 (0 Bids)End Date: Sunday Sep-29-2019 10:52:31 ESTBid now | Add to watch list