|
| |
| RUBY MINERAL
NATURAL
COLOR
Hardness
9 |
 |
 |
| Ruby, natural
crystal 26 grms. / 28.4 x 21.6 x 15.2 mm. (
triangle on the head ) |
| USD
290.00
ref RUmp26gr

|
| Hardness: |
9 |
|
| Specific
Gravity: |
3.9
- 4.1 |
|
| Refractive
Index: |
1.76
- 1.78 |
Corundum
data |
| Chemical
Composition: |
Al2O3,
Aluminum Oxide |
Ask a question |
| Crystal
Structure: |
Trigonal |
|
|