Flawless 4.18ct Fine Rare Silimanite | 9MM SIZE | Natural from Madagascar
- SKU
- 寸法(mm)
- 9.2 x 9.1 x 6.9mm
- 重さ (CT)
- 4.18
- Treatment
- No Treatment
- Shape
- Round
- Type
- Faceted
- Clarity
- VVS
- 色
-
Welcome to SuchenGems!
Sillimanite is a rare, brittle, aluminum silicate mineral that's often found in metamorphic rocks. It's a polymorph of kyanite and andalusite, meaning it has the same chemical composition but a different crystal structure.
Description
Color: Sillimanite can be colorless, white, yellow, brown, green, or blue
Appearance: Sillimanite is usually fibrous or massive, with needle-like crystals that are often parallel or twisted
Luster: Sillimanite has a silky luster
Optical properties: Sillimanite can exhibit chatoyancy, or a bright, narrow slit, similar to a cat's eye
Formation
Sillimanite forms in high-temperature, high-pressure metamorphic rocks
It's often found in pelitic metamorphic rocks, such as mica-schists, gneisses, and cornubianites
It can also be found in granitic rocks and pegmatites
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- SKU
- 寸法(mm)
- 9.2 x 9.1 x 6.9 mm
- 重さ (CT)
- 4.18
- Treatment
- No Treatment
- Shape
- Round
- Type
- Faceted
- Clarity
- VVS
- 色
-
Welcome to SuchenGems!
Sillimanite is a rare, brittle, aluminum silicate mineral that's often found in metamorphic rocks. It's a polymorph of kyanite and andalusite, meaning it has the same chemical composition but a different crystal structure.
Description
Color: Sillimanite can be colorless, white, yellow, brown, green, or blue
Appearance: Sillimanite is usually fibrous or massive, with needle-like crystals that are often parallel or twisted
Luster: Sillimanite has a silky luster
Optical properties: Sillimanite can exhibit chatoyancy, or a bright, narrow slit, similar to a cat's eye
Formation
Sillimanite forms in high-temperature, high-pressure metamorphic rocks
It's often found in pelitic metamorphic rocks, such as mica-schists, gneisses, and cornubianites
It can also be found in granitic rocks and pegmatites
| プロバイダー | 行き先 | 料金 |
|---|---|---|
| Standard Shipping - Tracked デフォルト |
その他の地域
21
|
最初のアイテム
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|
| DHL |
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7
|
最初のアイテム
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| FedEx |
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7
|
最初のアイテム
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| Standard Shipping - Tracked デフォルト |
タイ
7
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3
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ポジティブ
Beautiful, thank you!
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ポジティブVery fast delivery and a nice gem thank you