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280 CTS PINK OPAL ROUGH SLAB- WEST AUSTRALIA [VS6546]

Artikelnummer
Abmessungen (mm)
81.000 x 45.000 x 17.000mm
Gewicht (cts)
280.000
Typ
Rough
Farben

PINK OPAL FROM AUSTRALIA

ROUGH SLAB

This is a natural untreated specimen slab found in the Gascoyne region near Carnarvon in West Australia in 2011- previous to this only pink opal was from Peru. This material has various shades of pink with interesting white lines through some specimens.. These opals range from opaque to translucent.. This may be kept as a specimen cut into stones or made into a carving.We have taken the photo with the stone wet as this is how it will look polished.

This is what the West Australian mine dept says about Pink Opal

All weights and sizes are approximate.

Pink opal
‘Pink opal’ is a prospectors’ name applied to a different
variety of mookaite that outcrops as a persistent bed of
extremely bright pink opalized radiolarite near Binthalya.
At this site, pink opal is present as a dominant, horizontal
bed within zones of coloured porcellanites located beneath
a surface-brecciated zone in which angular fragments of
pink porcellanite have been cemented by iron and silica
solutions to produce an attractive pink breccia. The pink
zone beneath has already been tested by trial mining to
ascertain the extent and consistency of the pink, opalized
material.

Examination of pink opal thin sections has confirmed
the rock is radiolarite with a dominantly isotropic, finegrained
mineral composition. Although not verified by
XRD analysis, the pink opal’s physical and visible optical
properties suggest it is predominantly opaline silica,
having a lower bulk density than the locally porcellanized
mookaite material. Pink opal commonly shows liesegang
banding and often contains small vugs and fine fractures
infilled with microcrystalline quartz. Microscopic,
lustrous grains within the rock result from reflections of
granular quartz where it has infilled pores and replaced
radiolarian structures.
In a manner similar to the origin of mookaite, the resilicification
of the Windalia Radiolarite forming the pink
opal porcellanite has resulted in a visually attractive, bright
pink material displaying a high vitreous lustre. Pink opal
is extremely hard and brittle with a conchoidal fracture
. These properties allow pink opal
to take a high polish, making it suitable for the production
of colourful, polished tumbled stones, cabochons, and
other artworks .

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Rest der Welt
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sedaopals
Seda Opals: 35 Years of Opal Expertise, Direct to You! UP TO 8 WINS IN NR AUCTION IN 3 DAYS Welcome to Seda Opals, a trusted family-owned business with a rich history in opal mining, cutting, and sales. Founded by Paul Sedawie, who also serves as the current president of the Opal Association Inc., our company is fueled by over three decades of experience. While we recently closed our retail shop/museum at the Gold Coast Opal, we've shifted our focus exclusively to online operations. Through this platform, we bring the opal fields and incredible deals straight to you. Our primary emphasis lies in wholesaling, allowing us to provide you with exceptional value. Paul Sedawie embarked on his opal mining journey in 1986 at the Four Mile field in Lightning Ridge, alongside his first partner, Bob Young. It took them six months to uncover a remarkable stone, instilling in Paul a deep respect for the precious gem and the challenges it presents. Today, Paul's eldest son, Peter Sedawie, has taken the reins, while Ross manages our site. This grants Paul the freedom to travel to various opal fields and revel in the breathtaking beauty of this magnificent stone. The youngest member of our family business, Ross Sedawie, has been immersed in the world of opals since his earliest days. His extensive knowledge and understanding of opals ensure you're in capable hands. At Seda Opals, we stand firmly behind our products, offering a 100% money-back guarantee on all purchases. We sincerely hope you enjoy our offerings and wish you the best of luck with your bidding.
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  • irenesini
    irenesini
    Positiv

    As described. Thank you.

  • eliax
    eliax
    Positiv

    Extremely good communications and very fast with shipping, item as described thank you!

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Gültig bis
21st Apr 2024

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Versanddetails

Versand:
$16.00 :Tage zählen über Registered Shipping
Schiffe von:
Australia

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Überblick

Auflistungstyp : Standard
Produkt ID : 960073
Beginnt : 14th March 2024 04:24 pm PDT
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