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$14.99 USD
Precio
3634
3

9.70 CTS AMETRINE ROUGH-PRE SHAPED-BOLIVIAN [F4935]

SKU
Dimensiones (mm)
x x mm
Peso (cts)
Certified Gemstones
No
Tipo
Rough
Colores

QUALITY ROUGH

AMETRINE ROUGH

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

Weight 9.70 cts app.

Size  18 x 11 x 8 mm app

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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18980 de comentarios

  • gemarab
    gemarab
    Positivo

    Great and clear sapphire, beautiful cut ! Great packaging

  • js20031
    js20031
    Positivo

    AAAA+++ Very Happy! Just like the pic.

  • js20031
    js20031
    Positivo

    AAAA+++ Very Happy! Just like the pic.

Auditoría

El programa Gemstone Sheriff permite a nuestros miembros solicitar una auditoría de cualquier producto, que se completa con una :cualificación independiente que evalúa la precisión de la descripción y las imágenes del artículo.

Detalles de envío

Envío:
$16.00 :cuenta días a través de :proveedor
Se envía desde:
Australia

Opciones de pago

  • paypal
  • stripe
Este vendedor agrega 10.00% tax a las transacciones en Australia.

Descripción general

Tipo de listado : Standard
ID del Producto : 417220
Empieza : 7th November 2024 10:00 pm PST
* Todos los precios están en :moneda