Emerald
Structure : HexagonalHardness : 7.5
Specific Gravity : 2.71
Refractive index : 1.57 - 1.5
Doubly Refracting (bi-refraction) : 0.006
Copyright © Thursday 11/07/2024 GLI.
Designed by 4ss.net
Privacy Policy | Links | Gemstone Information | Translate to Japanese | Translate to French | Master Cut Gems | Sold Items Gallery