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Cijena

181.3 CTS PINK MOOKAITE WEST AUSTRALIA [F5590]

3820
7

SKU
Dimenzije (mm)
50.000 x 50.000 x 10.000mm
Težina (cts)
181.300
Tip
Rough
Boje

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.The pink opal derives its color from trace amounts of included organic compounds known as quinones. 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 a rare form of pink opal brecciated.!

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

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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FedEx je snižen na $12.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
FedEx je snižen na $39.00 na narudžbe s 2 ili više artikala
Registered Shipping $9.00 / 7 $16.00 / 21
Australia
Registered Shipping je snižen na $9.00 na narudžbe s 2 ili više artikala
Ostatak svijeta
Registered Shipping je snižen na $16.00 na narudžbe s 2 ili više artikala

sedagems
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and gems stones he has collected on his many buying trips world wide. All stock has a money back guarantee as your continued business is our business.
Mermaid Waters , Australia
Provjereno
19056 povratne informacije

  • rustynut
    rustynut
    Pozitivan

    Good stone great service

  • martin11
    martin11
    Pozitivan

    Great thank very much, lovely pearls.

  • philsgems
    philsgems
    Pozitivan

    Nice piece of rough. thankyou

  • philsgems
    philsgems
    Pozitivan

    Nice stone. Thankyou

  • philsgems
    philsgems
    Pozitivan

    Have received the rough. Nice colour. Thankyou

5%
Kod kupona SEDADEALS
Vrijedi do
2nd Jan 2025

Revizija

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Detalji dostave

dostava:
$16.00 21 days putem Registered Shipping
Brodovi iz:
Australia

Načini plačanja

  • paypal
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Ovaj prodavač dodaje 10.00% transakcijama u Australia .

Pregled

Vrsta unosa : Standard
Identifikacijski broj proizvoda : 462426
Počinje : 19th December 2024 05:36 pm PST
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