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GEMMOLOGICAL PROPERTIES
Coral (Red)
Family: |
Calcareous Coral |
Crystal System: |
Organic |
Specific Gravity: |
2.65 |
Hardness: |
3.5 - 4.0 |
Refractive Index: |
1.48 |
Chemical Composition: |
CaCO3 |
Lustre: |
Waxy to Vitreous |
Fracture: |
Choncoidal |
This gemmological data has been provided by an external consultant. If you notice any errors or omissions - or if you would like to offer a suggestion to improve this service - please contact: webmaster@ajtd.com.au |
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