Opals
Gemstones
Jewelry
Coins
View All Photos (7)
2.15 Carats Top Fire Natural Sphene Gemstones
- SKU
- Dimensions (mm)
- 11.000 x 7.000 x 4.000mm
- Weight (cts)
- 2.150
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
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
- Dimensions (mm)
- 11.000 x 7.000 x 4.000 mm
- Weight (cts)
- 2.150
- Treatment
- No Treatment
- Type
- Faceted
- Colours
-
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
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| FedEx | $18.00 / 2 days | $35.00 / 8 days |
|
Thailand
FedEx is discounted to $18.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $35.00 on orders with 2 or more items
|
||
| Express Shipping | $13.00 / 2 days | $17.99 / 7 days |
|
Thailand
Express Shipping is discounted to $13.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $17.99 on orders with 2 or more items
|
||
-
PositiveTrue to the color in the photo! Nice size and clarity too!
-
Positive
Another fast and well packed shipment.
-
Positive
Fast to arrive and well packaged. Looks gorgeous.
-
Positive
Beautiful gem
-
Positive
Thank you
