|
| |
| RUBY MINERAL
NATURAL
COLOR
Hardness
9 |
 |
 |
| Ruby, natural
tabular crystal
34 grms. / 26.9 x 23 x 20.8 mm.( triangles on the
head ) |
USD
165
.00
ref RUmit34g
|
| Hardness: |
9 |
|
| Specific
Gravity: |
3.9
- 4.1 |
|
| Refractive
Index: |
1.76
- 1.78 |
Corundum
data |
| Chemical
Composition: |
Al2O3,
Aluminum Oxide |
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| Crystal
Structure: |
Trigonal |
|
|