category

Ruby

Physical Properties Of Gemstones


(G.) Specific gravity

(R.I.) Refractive Index

(H.M.) Mohs Hardness

Name

(H.M)

(G.)

(R.I.)
Diamond 10.0 3.52 2.42
Ruby 9.0 3.96-47.05 1.76-1.78
Sapphire 9.0 3.96-4.05 1.76-1.78
Emerald 7.5-8 2.63-2.80 1.56-1.60
Aquamarine 7.5-8 2.36-2.80 1.56-1.60
Golden Beryl 7.5-8 2.63-2.80 1.56-1.60
Tourmaline 7-.7.5 3-3.2 1.62-1.64
Spinel 8 3.58-3.64 1.71-1.74
Peridot 6.5-7 3.30-3.50 1.65-1.70
Topaz 8 3.40-3.60 1.63-1.64
Amethyst 7 2.65-2.66 1.54-1.55
Citrine 7 2.65-2.66 1.54-1.55
Garnet 6.5-7.5 3.41-4.2 1.74-1.89