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Gem and Mineral Library - Refractive Indexes


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Table of Refractive Indexes
Mineral Family   < > Refractive Index   < >
Topaz Mineral Family1.64/1.63 to 1.62/1.61
Sherry Topaz1.64/1.63 to 1.62/1.61
Imperial Topaz1.64/1.63 to 1.62/1.61
Green Topaz1.64/1.63 to 1.62/1.61
Golden Topaz1.64/1.63 to 1.62/1.61
Blue Topaz1.64/1.63 to 1.62/1.61
Garnet Mineral Family1.73-1.83
Spessartite1.79-1.81
Spessartine1.79-1.81
Rhodolite1.75-1.76
Pyrope1.73-1.75
Hessonite (Grossular)1.74
Grossular1.74
Almandine1.76-1.83
Diamond Mineral Family2.41None
Corundum Mineral Family1.77/1.76
Sapphire1.77/1.76
Ruby1.77/1.76
Padparadscha1.77/1.76
Beryl Mineral Family1.56/1.57 to 1.59/1.6
Red Beryl1.56/1.57 to 1.59/1.6
Morganite1.56/1.57 to 1.59/1.6
Heliodor1.56/1.57 to 1.59/1.6
Emerald1.56/1.57 to 1.59/1.6
Aquamarine1.56/1.57 to 1.59/1.6
Ammonite Mineral Family1.52-1.68None
Amblygonite Mineral Family1.612-1.636None
Amber Mineral Family1.539-1.545None
Actinolite Mineral Family1.614-1.641None
Click on a Mineral Family or a Specific Mineral Variety Above for More Information.



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