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RUBY MINERAL
NATURAL
COLOR
Hardness
9 |
|
|
Ruby, natural
tabular crystal 14
grms.
24.8 x 21.3 x 10.4 mm ( triangles on the
heads )
( Deep red ) glossy
|
USD
110
.00
ref RUmita14g
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|
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 |
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