| |
LOOSE
GREEN
TOURMALINE
NATURAL COLOR
Hardness
7.5 |
|
Tourmaline chemical composition is (Na, Li,Ca) (Fe2, Mg, Mn, Al)3 Al6 I(OH)4 I (BO3)3ISi6O18I . |
Crystaline system: Trigonal. |
Occurences: In the acid magmatic rocks and associated pegmatites, limestones and schists, placers. |
Coloured tourmalines are related to sodolithic pegmatites. | One distinguishes two principal types of tourmalines: the hexagonal type and the triangular one. |
|
|
|
1.69 cts. Emerald
cut tourmaline single |
|
|
|
|
x |
Pieces: |
|
1
Tourmaline |
x |
x |
Type: |
|
100% Natural |
|
|
|
|
|
|
|
|
|
|
Color: |
|
Green |
|
|
Shape: |
|
Emerald
cut |
|
|
|
|
|
|
|
|
|
|
Weight: |
|
1.69 Carats |
|
|
Size: |
|
6.5 x 6.5
mm |
|
|
|
|
|
|
|
|
|
|
Clarity: |
|
FL |
|
|
Luster: |
|
Good |
|
|
|
|
|
|
|
|
|
|
Treatment: |
|
None (N) |
|
|
Origin: |
|
Madagascar |
|
|
|
|
|
|
|
|
|
We use a microscopic photography system. |
|
Refr. Index: |
|
1.62-1.64 |
|
|
Hardness |
|
7.5 |
The actual gemstone is smaller than the images shown. |
|
|
|
|
|
|
|
|
Depth: 5.2
mm. |
|
|
White spots are
dust. |
|
|
|
Stone Price: SOLD
ref:GrToe169
|
Depth:5.2 mm.
|
|
|
Why Shop With GGGems.com ? |
|
|
|
|
12-Days Inspection Period |
|
Gemological Authenticity |
|
No Risk Payment |
|
No Risk Return Policy |
|
Swiss Owned |
|
24 Hour Email Response |
|
|
Secure Insured Delivery |
A.
Darbellay; your guide to GGGems.com |
|
Customer Commitment |
|
|
Qualified Gemologists |
RETURN TO »»
TOURMALINE GREEN |
|
Fluent English Support by e-mail |
|
|
|
|
|
|
|
|
|
|
|
|
|
Exceptional
-- |
|
To
purchase a stone click to ORDER
|
Very
fine -- |
|
|
|
Fine
-- |
|
Good
-- |
|
|
|
|
|
|
|
|
|
|
|
|
|