|
| |
| LOOSE
SPHENE
NATURAL
COLOR
Hardness 5.0-5.5 |
 |
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SPHENE
| Chemical
Composition: CaTiSiO5, Calcium Titanium |
| Crystal
Structure: Monoclinic |
| Environment:
Magmatic, metamorphic and hydrothermal rocks. |
| Name Origin:
Titanite Named
after its chemical composition of titanium. |
| This
stone shows an exceptional
capacity to restore the light, thanks in particular to its high |
| refractive
index, especially under not very enlightened condition. |
|
|
15.30 cts.
Oval chrome sphene single |
 | | x | Pieces: |  | 1
Sphene | x | x | Type: | | 100%Natural | | | | | | | | | | | | Color: | |
Green-Yellowish | | | Shape: | | Oval faceted | | | | | | | | | | | | | Weight: | | 15.30
Carats | | | Size: | |
18.1 x 12.6 mm. | | | | | | | | | | | | Clarity: | | NFL | | | Luster: | | Excellent | | | | | | | | | | | | Treatment: | | None
(N) | | | Origin: | | Madagascar | | | | | | | | | | | Comment
: Overall green color | | Refr. Index: | | 1.885
- 2.050 | | | Hardness | | 5.0-5.5 | | with
Red sparkles. | | | | | | | Depth:
8.2 mm  | | |
| This
is a virtual certificate compiled from the lab data for the gemstone
being examined. Clarity is based on magnification |
| under
a 10X corrected loupe. All gemology performed by GGGems. Jean &
Alain Darbellay guaranteeing that this stone |
| is
100% natural. Prices and availability are subject to change without
notice. |
|
| Stone Price: USD
8590.00
ref:TIgo 1530
|
 
 
 
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SPHENE |
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Fluent English Support by e-mail |
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|
-
Scale determining the purity of a stone.
- |
|
|
|
| FL |
NFL |
SI1 |
SI2 |
MI1 |
 |
 |
 |
 |
 |
| Flaw
less |
Near
flaw less |
Slightly
included 1 |
Slightly
included 2 |
Medium
included 1 |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| MI2 |
MI3 |
VI1 |
VI2 |
HI |
 |
 |
 |
 |
 |
| Medium
included 2 |
Medium
included 3 |
Very
included 1 |
Very
included 2 |
Highly
included |
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