Antonio Rapisarda

Decorative Minerals Auction (Expert Highlight)

5 freeform pieces mounted on a Boulder Matrix opal chain from Queensland. 
Weight 90 grams / 450 carats 
Actual measurements shown in the photo beside the caliper.

Koroit opals belong to the Boulder Opal family and are extremely rare. They formed through water-rich silica deposits that became trapped inside iron minerals called Matrix.
Koroit opals are highly sought after for their intricate patterns where the colors of earth and crystals blend into marvelous structures that have inspired Aboriginal art since prehistoric times, and for this reason they are called "tribal patterns".
Australian Boulder opals are a precious gemstone that gains value over time and will add prestige to your collection.

5 Freeform montate su catenella di opale matrice Boulder Koroit provenienti dal Queensland.
Peso 90 grammi / 450 carati 
Misure reali in fotografia a fianco del calibro.

Gli opali Koroit appartengono alla famiglia degli opali Boulder e sono estremamente rari.  Si sono formati attraverso dei depositi di acqua contente silice che sono rimasti intrappolati dentro a dei minerali ferrosi detti Matrix.
Gli opali Koroit sono molto ricercati per i loro pattern intricati dove i colori delle terre e dei cristalli si fondono in meravigliose strutture che hanno ispirato fin dalla preistoria l' arte aborigena e per questo motivo vengono chiamati "tribal patterns".
Gli opali boulder australiani sono una pietra preziosa che guadagna valore col tempo e aggiungerà prestigio alla vostra collezione.

Our expert provides this estimate to guide you when you’re bidding. It’s based on expected demand and the unique characteristics of the object, like quality, rarity, or ownership history. We can’t guarantee the object will sell, resell or be appraised for this amount.

Opal Freeform - Height: 110 mm - Width: 60 mm- 90 g - (5)

Queensland, Australia

Italy

verified

Verified

Number of objects

Main mineral

Mineral form

Weight

Origin (region/city)

Country of origin

Height

Width

Depth

Five freeform opals mounted on a chain, Boulder Koroit from Queensland, Australia; total weight 90 g with dimensions 110 mm high, 60 mm wide and 10 mm deep.

Opal Freeform - Height: 110 mm - Width: 60 mm- 90 g - (5)

Catawiki Buyer Protection

Trustpilot 4.4 | 139133 reviews

Share this object with your friends

Five freeform opals mounted on a chain, Boulder Koroit from Queensland, Australia; total weight 90 g with dimensions 110 mm high, 60 mm wide and 10 mm deep.

Description from the seller

Details

Similar objects