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$12,000.00 USD
PVP estimado $36,000.00
5895
13

995.60 CTS - OPAL PINEAPPLE GLAUBERITE QUALITY COLLECTOR /// INV-P6

SKU
INV-P6
Dimensiones (mm)
81.500 x 68.400 x 46.000mm
Peso (cts)
995.600
Tipo
Specimen
Colores



GLAUBERITE

THIS IS A RARE OPAL PINEAPPLE ONLY FOUND IN WHITE CLIFFS NSW AUSTRALIA.

THERE HAVE ONLY BEEN BETWEEN 300-500 SUCH SPECIMENS FOUND THERE. THEY ARE FORMED AS A RESULT OF PRECIOUS OPAL REPLACING GLAUBERITE [A SULFATE MINERAL] -SUCH SPECIMENS ARE KNOWN AS PSEUDOMORPHS. AS THEY STILL EXHIBIT THE EXTERNAL CRYSTAL FORM THEY HAVE REPLACED. THE GLAUBERITE CRYSTAL IS BELIEVED TO HAVE FORMED UNDER GLACIAL CONDITION WHICH LATER DISSOLVED LEAVING THE VOID TO BE FILLED WITH OPAL THE PSEUDOMORPHS ARE FORMED IN THE PINEAPPLE BAND NEAR THE OPAL FEEDER WITH LESSER -SHAPED PIECES FURTHER AWAY ,THIS SPECIMEN NEED TO BE EXPOSED FOR COLOUR -

MAUVE BLUE

One of the rarest and most fascinating types of opal comes in the shape of a palm-sized cluster of radiating points that resembles a pineapple. These "Opal Pineapples" are found only in the Cretaceous sediments of the White Cliffs in Australia

White Cliffs is the only place where these marvelous (and very rare) pseudomorphic “pineapple” opals have been found. They were formed when a mineral crystal of glauberite (or ikalite) was first replaced by calcite and then opalised.

Formula: SiO2•nH2O
Colour: Colorless, white, various
Hardness: 51⁄2 - 61⁄2

A pseudomorph (which means false shape in Latin) is a mineral that has replaced another mineral's chemistry or structure with its own without changing the outward shape of the original mineral while color, hardness, and other properties change to those of the replacing mineral. Transformations from one mineral to another are not unusual in nature, but preserving the outward shape of the original mineral is! The end result is that the crystal appears to be one mineral but is actually another.

Opal "Pineapples" - an opal pseudomorph formed by the replacement of glauberite by opal - found only in New South Wales.




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investmentopals
investmentopals
TRADING SINCE 1995-- PARENT COMPANY-TRUEBLUEOPALS PTY LTD AUSTRALIA LIGHTNINGOPALS LLC-USA for further information on investing pls email salopals@aol.com for price negotiation or postage,ALL MONIES WIRE TRANSFER ONLY,sally Patel and natassa Patel have been in business for 35 years trueblueopal us family owned company Lightningopals llc is USA based sister branch of trueblueopals, we wholesale top opals from all opal fields , working with mining partner's like David Darby of yowah we specialize in investmentopals , and work with auction houses as well , sally has held several positions in opal association and is current treasurer we are members of ica and Agta and American opal society and Lrma other family members are also selling on opalauctions with over 20 stores catering from rough cut fossil beads specimens carvings and more trueblueopals pty ltd whatsapp *61419785454
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856 de comentarios

  • lemonade
    lemonade
    Negativo

    Discussed it was for my wife’s birthday and sent a $3k ring in a cardboard box. Seriously?

  • sizzle7
    sizzle7
    Positivo

    Delighted with my purchase. Thanks for quick shipping and great service.

  • jensensgems
    jensensgems
    Positivo

    Stunning in real life. Thanks. Prompt delivery.

  • andrem
    andrem
    Positivo

    Fast shipping. Happy with opal. Thanks!

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Descripción general

Tipo de listado : Standard
ID del Producto : 1239619
Empieza : 11th November 2024 09:04 pm PST
* Todos los precios están en :moneda