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2.15 Carats Top Fire Natural Sphene Gemstones
- SKU
- 寸法(mm)
- 11.000 x 7.000 x 4.000mm
- 重さ (CT)
- 2.150
- Treatment
- No Treatment
- タイプ
- Faceted
- 色
-
A brilliantly transparent gem, sphene has fire greater than that of diamond! This gem is named from the Greek word for “wedge,” as its crystals are typically wedge shaped, but may be referred to by its mineral name, titanite. Another characteristic sphene possesses is birefringence, or double refraction, meaning that light splits into two rays as it passes through the gem. As a result, the back facets appear as double images, giving the gem a soft, hazy appearance, similar to the doubling seen in zircon.
Classification
- Common Name: Sphene
- Species Sphene
- Variety
- Colors Yellow, Green, Brown, Orange, Red
- Alternate Names: Titanite, Chrome Sphene
- Gemstone Groups
- Key Separations: OTL RI reading, very strong eye visible doubling, possibly spectra
- Comments Chrome sphene is intense green in color.
Sphene Chemistry and Crystallography:
- Chemical Name: Calcium titanium silicate
- Chemical Formula: CaTiSiO5
- Synthesis
- Crystal System: Monoclinic
- Classification Silicate
- Nature Natural
- Crystallinity Crystalline
Sphene Physical properties:
- Hardness 5-5.5
- Streak White
- Specific Gravity: 3.5-3.54 Typical:3.52
- Toughness Varies
- Inclusions Sphene occasionally contain tiny crystals that aline in straight rows or “feathers”, natural inclusions, actinolite needles and twinning is common. Stones have strong dispersion and eye-visible doubling.
- Luster SubAdamantine
- Stability
- Fracture Conchoidal, Splintery
- Cleavage Good, in one direction
Item Specifics:
- TREATMENT NONE 100% NATURAL
- COLOR GREEN MULTICOLOR SPARKLE
Feel free to to “make an offer” on our other items :)
We Accept Payments through
- Paypal
- Direct Deposit
- Credit Cards
- SKU
- 寸法(mm)
- 11.000 x 7.000 x 4.000 mm
- 重さ (CT)
- 2.150
- Treatment
- No Treatment
- タイプ
- Faceted
- 色
-
A brilliantly transparent gem, sphene has fire greater than that of diamond! This gem is named from the Greek word for “wedge,” as its crystals are typically wedge shaped, but may be referred to by its mineral name, titanite. Another characteristic sphene possesses is birefringence, or double refraction, meaning that light splits into two rays as it passes through the gem. As a result, the back facets appear as double images, giving the gem a soft, hazy appearance, similar to the doubling seen in zircon.
Classification
- Common Name: Sphene
- Species Sphene
- Variety
- Colors Yellow, Green, Brown, Orange, Red
- Alternate Names: Titanite, Chrome Sphene
- Gemstone Groups
- Key Separations: OTL RI reading, very strong eye visible doubling, possibly spectra
- Comments Chrome sphene is intense green in color.
Sphene Chemistry and Crystallography:
- Chemical Name: Calcium titanium silicate
- Chemical Formula: CaTiSiO5
- Synthesis
- Crystal System: Monoclinic
- Classification Silicate
- Nature Natural
- Crystallinity Crystalline
Sphene Physical properties:
- Hardness 5-5.5
- Streak White
- Specific Gravity: 3.5-3.54 Typical:3.52
- Toughness Varies
- Inclusions Sphene occasionally contain tiny crystals that aline in straight rows or “feathers”, natural inclusions, actinolite needles and twinning is common. Stones have strong dispersion and eye-visible doubling.
- Luster SubAdamantine
- Stability
- Fracture Conchoidal, Splintery
- Cleavage Good, in one direction
Item Specifics:
- TREATMENT NONE 100% NATURAL
- COLOR GREEN MULTICOLOR SPARKLE
Feel free to to “make an offer” on our other items :)
We Accept Payments through
- Paypal
- Direct Deposit
- Credit Cards
| 配送業者 | 発送先:国 | その他の国への配送 |
|---|---|---|
| FedEx | $18.00 / :日日 | $35.00 / :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 $18.00 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 $35.00 に割引されます
|
||
| Express Shipping | $13.00 / :日日 | $17.99 / :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 $13.00 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 $17.99 に割引されます
|
||
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ポジティブTrue to the color in the photo! Nice size and clarity too!
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ポジティブ
Another fast and well packed shipment.
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ポジティブ
Fast to arrive and well packaged. Looks gorgeous.
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ポジティブ
Beautiful gem
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ポジティブ
Thank you
