|
 |
Product ID: |
807247165 |
Product Name: |
Tourmaline |
Weight: |
1.59 CT. |
Size: |
16.5 x 3.7 x 2.6 Mm. |
Shape: |
Octagon |
Color: |
Green |
Clarity: |
VVS |
Luster: |
Good |
Origin: |
Nigeria |
Treatment:: |
Unheated |
Crystal Structure: |
Trigonal |
Hardness: |
7 - 7.5 |
Specific Gravity: |
3.0+ |
Refractive Index: |
1.62 - 1.68 |
Chemical: |
Na(Li,Al)3Al6(B03)3 Si6O18(OH)4 |
|
|
 |
 |
|