Non hai fatto offerte per questa asta.
AMETRINE ROUGH-BOLIVIAN 57.15 CTS [F2450]
- SKU
- Dimensioni (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- NO
- Type
- Rough
- Colori
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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 57.15 cts app.
Size 27.5 x 18.5 x 17 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.
| Fornitore di spedizioni | Spedizione a Australia | Spedizione nel resto del mondo | Spedizione combinata ( Australia ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| FedEx |
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| Registered Shipping |
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- SKU
- Dimensioni (mm)
- x x mm
- Peso (cts)
- Certified Gemstones
- NO
- Type
- Rough
- Colori
-
QUALITY ROUGH
AMETERNIE ROUGH
This is a natural untreated rough piece from Bolivia which is ready for cutting or keeping as a specimen.
Weight 57.15 cts app.
Size 27.5 x 18.5 x 17 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.
| Fornitore di spedizioni | Spedizione a Australia | Spedizione nel resto del mondo | Spedizione combinata ( Australia ) | Spedizione combinata (resto del mondo) |
|---|---|---|---|---|
| FedEx |
|
|
|
|
| Registered Shipping |
|
|
|
|
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and g....
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PositivoPaid and shipped - no feedback left after 100 days
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PositivoCan’t wait to see this under a black light!
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PositivoGorgeous.
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PositivoLove seeing the rainbow colors on this gem. Thank you!
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Positivoso beautiful stone, thank you!
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