あなたはこのオークションに入札していません。
AMETRINE ROUGH-BOLIVIAN 33.35 CTS [F2469]
- SKU
- 寸法(mm)
- x x mm
- 重さ (CT)
- Certified Gemstones
- いいえ
- タイプ
- Rough
- 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 33.35 cts app.
Size 20.1 x 16.9 x 15.8 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
- 寸法(mm)
- x x mm
- 重さ (CT)
- Certified Gemstones
- いいえ
- タイプ
- Rough
- 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 33.35 cts app.
Size 20.1 x 16.9 x 15.8 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.
配送業者 | 発送先:国 | その他の国への配送 |
---|---|---|
FedEx | $12.00 / :日日 | $39.00 / :日日 |
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $12.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $39.00 に割引されます
|
||
Registered Shipping | $9.00 / :日日 | $16.00 / :日日 |
:国
:数量以上のアイテムを含む注文では、:プロバイダーは $9.00 に割引されます
世界のその他の地域
:数量以上のアイテムを含む注文では、:プロバイダーは $16.00 に割引されます
|
-
ポジティブ
as described and pictured
-
ポジティブ
Paid and shipped - no feedback left after 100 days
-
ポジティブ
Paid and shipped - no feedback left after 100 days
-
ポジティブ
Paid and shipped - no feedback left after 100 days
-
ポジティブ
A+ seller great looking piece
-
ポジティブ
Paid and shipped - no feedback left after 100 days
なぜユーザーは自分自身を上回る入札をするのでしょうか?
入札する場合、これはユーザーが製品に入札する意思のある最大金額です。その後、当社のシステムがそのユーザーに代わって自動的に入札し、最高入札者としての地位を維持するために、指定された最大値まで入札額を段階的に引き上げます。
「自動入札」を示すアイコンがある場合、システムが最高入札額に基づいてユーザーに積極的に入札していることを意味します。これは、ユーザーが自分自身を上回って入札しているように見えるかもしれませんが、ユーザーの上限を反映するためにシステムが入札を更新した結果にすぎません。
監査
-
説明が正確
-
正確な写真
Comments
The Verified Seller has provided accurate and complete information for this item including weight, dimensions and treatment