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AMETRINE ROUGH-BOLIVIAN 57.15 CTS [F2450]
- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- Type
- Rough
- 顏色
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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.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 澳洲 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| FedEx |
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| Registered Shipping |
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- 存貨單位
- 尺寸(毫米)
- x x mm
- 重量 (cts)
- Certified Gemstones
- 不
- Type
- Rough
- 顏色
-
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.
| 運輸商 | 運送至:國家 | 運送到世界其他地區 | 聯合運輸( 澳洲 ) | 聯合運輸(世界其他地區) |
|---|---|---|---|---|
| FedEx |
|
|
|
|
| Registered Shipping |
|
|
|
|
Hi Welcome to the Sedagems store, Run by Paul Sedawie and specializing in Australian sapphires and g....
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積極的Paid and shipped - no feedback left after 100 days
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積極的Can’t wait to see this under a black light!
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積極的Love seeing the rainbow colors on this gem. Thank you!
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積極的Beautiful stone. Efficient postage.
為什麼用戶出價高於自己?
出價時,這是一個人願意為產品出價的最高金額。然後,我們的系統將自動代表投標人出價,逐步將出價提高到最高價,以保持其最高出價者的地位。
當出現「自動出價」圖示時,表示我們的系統正在根據投標者的最高出價主動為其出價。這可能看起來好像出價者出價高於自己,但這只是系統更新出價以反映出價者最高限額的結果。