您尚未参与本次拍卖。
Top Color 3.84 ct Natural Color Change Sphene SKU.3
- 存货单位
- 尺寸(毫米)
- 15.020 x 8.650 x 4.320mm
- 重量 (cts)
- 3.840
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
General Info:
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 silicateChemical Formula: CaTiSiO5SynthesisCrystal System: MonoclinicClassification SilicateNature NaturalCrystallinity CrystallineSphene 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:
- ORIGIN TANZANIA
- 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)
- 15.020 x 8.650 x 4.320 mm
- 重量 (cts)
- 3.840
- Treatment
- No Treatment
- 类型
- Faceted
- 颜色
-
General Info:
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 silicateChemical Formula: CaTiSiO5SynthesisCrystal System: MonoclinicClassification SilicateNature NaturalCrystallinity CrystallineSphene 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:
- ORIGIN TANZANIA
- 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 | $35.00 / :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 $35.00
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $35.00
|
||
Express Shipping | $55.00 / :几天天 | $55.00 / :几天天 |
:国家
Express Shipping 对包含 2 或更多商品的订单折扣为 $55.00
世界其他地区
Express Shipping 对包含 2 或更多商品的订单折扣为 $55.00
|
||
Registered Shipping | $10.00 / :几天天 | $10.00 / :几天天 |
:国家
Registered Shipping 对包含 2 或更多商品的订单折扣为 $10.00
世界其他地区
Registered Shipping 对包含 2 或更多商品的订单折扣为 $10.00
|
-
积极的
Stone same as photos advertised--beautiful! Arrived early--Thank you. Very happy.
-
积极的
great stone
-
积极的
The item arrived on time, the piece is great I am very happy
-
积极的
Beautiful stone
为什么用户出价高于自己?
出价时,这是用户愿意为产品出价的最高金额。然后,我们的系统将代表该用户自动出价,逐步提高出价以保持其作为最高出价者的地位,直至达到指定的最高价。
当出现“自动出价”图标时,表示我们的系统正在根据用户的最高出价主动为用户出价。这可能看起来好像用户出价高于自己,但这只是系统更新出价以反映用户最高限制的结果。