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SET TOURMALINE SLICE NATURAL
COLOR Hardness
7.5 |
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Set
tourmaline slice
25.17 cts.
Set sliced tourmaline
18 x 15.9 mm.
Moderately included.
Enhancement: none (N)
stone PRICE SOLD
ORIGIN: Madagascar 
ref:
SetTosl2517c 
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All
of our tourmalines slices are polished on
both
sides.
| Hardness: |
7
- 7.5 |
Growth
zoning in a tourmaline crystal. |
| Specific
Gravity: |
3.0+ |
| Refractive
Index: |
1.62
- 1.68 |
| Chemical
Composition: |
Na(Li,Al)3Al6Si6O18(BO3)3
(OH)4, Sodium Lithium Aluminum Boro-Silicate Hydroxide |
| Crystal
Structure: |
Trigonal |
To purchase a stone from this site click to ORDER
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