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$45.00
Current Bid
1
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Closed
01/05/2017 11:24 pm
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350 CTS PINK OPAL ROUGH SLAB- WEST AUSTRALIA [VS6519]

SKU
Dimensions (mm)
105.000 x 31.000 x 13.000mm
Weight (cts)
350.000
Type
Rough
Colours

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 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 .

Shipping provider Shipping to Australia Shipping to rest of world
FedEx $12.00 / 3 days $39.00 / 10 days
Australia
FedEx is discounted to $12.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $39.00 on orders with 2 or more items
Registered Shipping $9.00 / 21 days $16.00 / 21 days
Australia
Registered Shipping is discounted to $9.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $16.00 on orders with 2 or more items

volcanicopals
volcanicopals
VOLCANIC OPALS is run by Paul sedawie of Seda Opals.The Seda Opal company was incorporated in 1994.The owner Paul sedawie is the current president of the OPAL ASSOCIATION INC .Seda Opals is an abbreviation from our surname Sedawie. The business is mainly wholesale and it is through this site that we can bring the opal fields and the bargins direct to you. Paul Sedawie started mining at the Four mile field in Lightning Ridge in 1986 with his first partner Bob Young. It took them 6 months to find a decent stone and this experience gave me a healthy respect for the stone and how hard it is to find. Previous to mining opal, Paul ran a successful mail order business in plants for 7 years which gave him a lot of experience servicing customers through parcel post. We use mainly Australia post as it has a excellent reputation for delivery to most parts of the world. I don't do any active mining now but my eldest son Peter Sedawie has taken over. This leaves me free to travel to any opal field in the world and to enjoy the beauty of this magnificent stone. We hope you enjoy our stock and good luck with your biding We have a retail shop/museum at the Gold Coast Opal and Gem Centre 25 surfers av mermaid waters Qld Australia .4218 open mon to sat 10 to 5
Lightning Ridge, Australia
Verified
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  • bustpig
    bustpig
    Positive

    All consistent good color will make nice bracelets thanks for extra piece i guess ya droped it so bonus for me ive worked with this opal before and like it alot i have some translucent material its the best looking of all i i know the percentage of gem qu

  • moss
    moss
    Positive

    Excellent thank you

  • rreissne
    rreissne
    Positive

    Thank you for the nice stone!

  • rreissne
    rreissne
    Positive

    Thank you for the nice stones!

  • rreissne
    rreissne
    Positive

    Thank you for the nice stone!

Bids History (1)
bustpig
Purchased from this seller previously
6 years ago
$44.00

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Shipping Details

Shipping:
$16.00 21 days via Registered Shipping
Ships from:
Australia

Payment Options

  • paypal
This seller adds 10.00% tax to transactions in Australia.

Overview

Listing Type : Standard
Product ID : 467312
Starting Bid : $44
Starts : 2nd May 2017 03:23 pm AEST
Ends : 2nd May 2017 04:24 pm AEST
* All prices are in USD