Product Description | Product Description | |
Product Name | Biron® Lab-grown Opal | |
Gemstone Type | Lab-grown | |
Species | Opal | |
Mohs' hardness | 5.5 | |
Density | 1.90-2.20 | |
Crystal System | Amorphous | |
Chemical Composition | SiO2nH2O | |
Refractive Index | 1.37-1.52 | |
Double Refraction | None | |
Dispersion | None |