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49.80 CTS AMETRINE ROUGH PARCEL-PRE SHAPED-BOLIVIAN [F7578]
- Artikelnummer
- Abmessungen (mm)
- 15.000 x 15.000 x 10.000mm
- Gewicht (cts)
- 49.800
- Farben
-
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.
- Artikelnummer
- Abmessungen (mm)
- 15.000 x 15.000 x 10.000 mm
- Gewicht (cts)
- 49.800
- Farben
-
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.
Versandanbieter | Versand nach:Land | Versand in den Rest der Welt |
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FedEx | $12.00 / :Tage Tage | $39.00 / :Tage Tage |
:Land
FedEx erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $12.00
Rest der Welt
FedEx erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $39.00
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Registered Shipping | $9.00 / :Tage Tage | $16.00 / :Tage Tage |
:Land
Registered Shipping erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $9.00
Rest der Welt
Registered Shipping erhält bei Bestellungen mit 2 oder mehr Artikeln einen Rabatt auf $16.00
|
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
Paid and shipped - no feedback left after 100 days
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Positiv
A+ seller great looking piece
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Positiv
Paid and shipped - no feedback left after 100 days
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