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Exceptional Colombian Treasure: Color Changing 2.12 Andesine Feldspar
- SKU
- 1000BCT
- 寸法(mm)
- 10.3 x 6.7 x 4.3mm
- 重さ (CT)
- 2.12
- Treatment
- No Treatment
- Shape
- Fancy
- Type
- Faceted
- Clarity
- VVS
- 色
-
Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. Its chemical formula is (Ca, Na)(Al, Si)4O8, where Ca/(Ca + Na) (% anorthite) is between 30 and 50%. The formula may be written as Na0.7-0.5Ca0.3-0.5Al1.3-1.5Si2.7-2.5O8.[2]
The plagioclase feldspars are a continuous solid solution series and as such the accurate identification of individual members requires detailed optical study, chemical analysis or density measurements. Refractive indices and specific gravity increase directly with calcium content.[5]
It is sometimes used as a gemstone.[6]
| 配送業者 | 配送先パキスタン | その他の国への配送 | 同梱配送 ( パキスタン ) | 同梱配送（その他の地域） |
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- SKU
- 1000BCT
- 寸法(mm)
- 10.3 x 6.7 x 4.3 mm
- 重さ (CT)
- 2.12
- Treatment
- No Treatment
- Shape
- Fancy
- Type
- Faceted
- Clarity
- VVS
- 色
-
Andesine is a silicate mineral, a member of the plagioclase feldspar solid solution series. Its chemical formula is (Ca, Na)(Al, Si)4O8, where Ca/(Ca + Na) (% anorthite) is between 30 and 50%. The formula may be written as Na0.7-0.5Ca0.3-0.5Al1.3-1.5Si2.7-2.5O8.[2]
The plagioclase feldspars are a continuous solid solution series and as such the accurate identification of individual members requires detailed optical study, chemical analysis or density measurements. Refractive indices and specific gravity increase directly with calcium content.[5]
It is sometimes used as a gemstone.[6]
| 配送業者 | 配送先パキスタン | その他の国への配送 | 同梱配送 ( パキスタン ) | 同梱配送（その他の地域） |
|---|---|---|---|---|
| Standard Shipping - Tracked |
|
|
|
|
| FedEx |
|
|
|
|
| DHL |
|
|
|
|
| UPS |
|
|
|
|
Welcome to the City Of Gems-Chanthaburi !! The City Of Gems-Chonburi has been operating from Chanth....
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ポジティブ
What a wonderful stone. Just as advertised in photos. All possible issues (little cloud) were apparent in photos. Very happy with purchase. Great seller great and speedy communication. Looking forward to purchasing many products from this store.
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ポジティブFast shipping. The stone is beautiful and looks just like the photos! Thank you!
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ポジティブ
Awesome fast shipping. Incredibly beautiful quartz shining with the sky color of sun setting.
