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AMETRINE ROUGH-BOLIVIAN 73.65 CTS [F2455]
- SKU
- Afmetingen (mm)
- x x mm
- Gewicht (cts)
- Certified Gemstones
- Nee
- Type
- Rough
- Kleuren
-
QUALITY ROUGH
AMETERNIE ROUGH
This is a natural untreated rough piece from Bolivia which is ready for cutting or keeping as a specimen.
Weight 73.65 cts app.
Size 37.2 x 23.9 x 14.9 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
- Afmetingen (mm)
- x x mm
- Gewicht (cts)
- Certified Gemstones
- Nee
- Type
- Rough
- Kleuren
-
QUALITY ROUGH
AMETERNIE ROUGH
This is a natural untreated rough piece from Bolivia which is ready for cutting or keeping as a specimen.
Weight 73.65 cts app.
Size 37.2 x 23.9 x 14.9 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.
| Verzend provider | Verzending naar Australia | Verzending naar de rest van de wereld |
|---|---|---|
| FedEx | $12.00 / 3 | $39.00 / 10 |
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Australia
FedEx krijgt korting op $12.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
FedEx krijgt korting op $39.00 bij bestellingen met 2 of meer artikelen
|
||
| Registered Shipping | $9.00 / 7 | $16.00 / 21 |
|
Australia
Registered Shipping krijgt korting op $9.00 bij bestellingen met 2 of meer artikelen
Rest van de wereld
Registered Shipping krijgt korting op $16.00 bij bestellingen met 2 of meer artikelen
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PositiefBeautiful ametrine. Very fast delivery. Professional seller
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Positief
Beautiful ametrine. Very fast delivery. Professional seller
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Positief
Amazing, beautiful & mysterious impactite
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Positief
amazing inner life & iridescence -- lovely
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Positief
this is SUCH a nice piece - they have a lifetime customer - great customer service and communication - THANK YOU
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Positief
Beautiful agate piece , and as always fast efficient service from Sedagems
Waarom overbieden gebruikers zichzelf?
Wanneer er wordt geboden, is dit het maximale bedrag dat een gebruiker bereid is te bieden op het product. Ons systeem zal dan automatisch namens die gebruiker bieden, waarbij het bod stapsgewijs wordt verhoogd om hun positie als hoogste bieder te behouden, tot aan het opgegeven maximum.
Als er een pictogram is dat 'Automatisch bieden' aangeeft, betekent dit dat ons systeem actief biedingen plaatst voor de gebruiker op basis van hun maximumbod. Dit kan lijken alsof gebruikers zichzelf overbieden, maar het is gewoon het gevolg van het feit dat het systeem het bod bijwerkt om de maximumlimiet van de gebruiker weer te geven.
