AMETRINE ROUGH-BOLIVIAN 47.45 CTS [F2449]
- SKU
- Dimensiones (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- No
- Tipo
- Rough
- Colores
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QUALITY ROUGH
AMETERNIE ROUGH
This is a natural untreated rough piece from Bolivia which is ready for cutting or keeping as a specimen.
Weight 47.45 cts app.
Size 28.9 x 19.4 x 18.4 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.
- SKU
- Dimensiones (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- No
- Tipo
- Rough
- Colores
-
QUALITY ROUGH
AMETERNIE ROUGH
This is a natural untreated rough piece from Bolivia which is ready for cutting or keeping as a specimen.
Weight 47.45 cts app.
Size 28.9 x 19.4 x 18.4 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.
Proveedor de envío | Envío a Australia | Envíos al resto del mundo |
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FedEx | $12.00 / 3 días días | $39.00 / 10 días días |
Australia
FedEx tiene descuento a $12.00 en pedidos con 2 o más artículos
Resto del mundo
FedEx tiene descuento a $39.00 en pedidos con 2 o más artículos
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||
Registered Shipping | $9.00 / 7 días días | $16.00 / 21 días días |
Australia
Registered Shipping tiene descuento a $9.00 en pedidos con 2 o más artículos
Resto del mundo
Registered Shipping tiene descuento a $16.00 en pedidos con 2 o más artículos
|
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Positivo
Good stone great service
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Positivo
Great thank very much, lovely pearls.
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Positivo
Nice piece of rough. thankyou
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Positivo
Nice stone. Thankyou
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Positivo
Have received the rough. Nice colour. Thankyou