AMETRINE ROUGH-BOLIVIAN 47.45 CTS [F2449]
- UGS
- Dimensions (mm)
- x x mm
- Poids (cts)
- Certified Gemstones
- Non
- Taper
- Rough
- Couleurs
-
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.
- UGS
- Dimensions (mm)
- x x mm
- Poids (cts)
- Certified Gemstones
- Non
- Taper
- Rough
- Couleurs
-
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.
Fournisseur d'expédition | Expédition vers :pays | Expédition dans le reste du monde |
---|---|---|
FedEx | $12.00 / : jours jours | $39.00 / : jours jours |
:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
|
||
Registered Shipping | $9.00 / : jours jours | $16.00 / : jours jours |
:pays
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
Reste du monde
:fournisseur bénéficie d'une réduction de :prix sur les commandes avec :quantité ou plus d'articles
|
-
Positif
Great and clear sapphire, beautiful cut ! Great packaging
-
Positif
AAAA+++ Very Happy! Just like the pic.
-
Positif
AAAA+++ Very Happy! Just like the pic.
-
Positif
Beautiful