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$65.00 USD
PVP estimado $300.00
2941
11

50.05 CTS AMETRINE ROUGH PARCEL-PRE SHAPED-BOLIVIAN [F7580]

SKU
Dimensiones (mm)
13.000 x 12.000 x 12.000mm
Peso (cts)
50.050
Colores

QUALITY ROUGH

AMETRINE ROUGH

This is a  natural untreated rough pieces from Bolivia which is ready for cutting or keeping as a specimen.

We have cut some stones from this parcel which can be seen at our sister site

SEDA GEMS

Ametrine, also known as trystine or by its trade name as bolivianite, is a naturally occurring variety of  quartz . It is a mixture of amethyst and  citrine  with zones of purple and yellow or orange. Almost all commercially available ametrine is mined Bolivia although there are deposits being exploited in Brazil and India

The colour of the zones visible within ametrine is due to differing oxidation states iron within the crystal. The different oxidation states occur due to there being a temperature gradient across the crystal during its formation.

Artificial ametrine can be created by differential heat treatment of amethyst.

Most ametrine in the low price segment can surely be assumed to stem from synthetic material. Since 1994 a Russian laboratory has perfected the industrial production of bicolored quartz crystals that are later irradiated to bring out the typical ametrine colors. Green-yellow or golden-blue ametrine does not exist naturally.

 

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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.
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  • royrock
    royrock
    Positivo

    Beautiful agate piece , and as always fast efficient service from Sedagems

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Descripción general

Tipo de listado : Standard
ID del Producto : 784391
Empieza : 20th November 2024 08:00 pm PST
* Todos los precios están en :moneda