What Is The RI Of Aquamarine?
What Is The RI Of Aquamarine? Gemstone Refractive Index Double Refraction Aquamarine (beryl)1.564-1.5960.004-0.005 Variscite 1.563-1.594 0.031 Beryl (precious) 1.562-1.602 0.004-0.010 Tremolite 1.560-1.643 0.017-0.027 What is the density of Aquamarine? Gem Variety Density Chemical Composition Aquamarine2.68-2.74 Aluminum beryllium silicate Emerald 2.67-2.78 Aluminum beryllium silicate Golden Beryl 2.66-2.87 Aluminum beryllium silicate Goshenite Beryl 2.66-2.87 Aluminum beryllium silicate