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0.70 Carats Top Fire Natural Sphene Gemstones
- 存货单位
- 尺寸（毫米）
- 6.900 x 4.800 x 3.730mm
- 重量 (cts)
- 0.700
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
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
- 存货单位
- 尺寸（毫米）
- 6.900 x 4.800 x 3.730 mm
- 重量 (cts)
- 0.700
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
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
| 运输商 | 运送至：国家 | 运送到世界其他地区 |
|---|---|---|
| FedEx | $18.00 / ：几天天 | $35.00 / ：几天天 |
|
：国家
FedEx 对包含 2 或更多商品的订单折扣为 $18.00
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $35.00
|
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| Express Shipping | $13.00 / ：几天天 | $17.99 / ：几天天 |
|
：国家
Express Shipping 对包含 2 或更多商品的订单折扣为 $13.00
世界其他地区
Express Shipping 对包含 2 或更多商品的订单折扣为 $17.99
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积极的Beautiful stone .
![1.10 CTS VVS SPARKLING COLOURFUL SPHENE [SB050]](https://liveplatforms-production.b-cdn.net/tenants/gr/uploads/images/265000-269999/268317/268317_1334584464.jpg?auto_optimize=medium?width=480&aspect_ratio=1001%3A1000&auto_optimize=medium)
