Gemstones with SG 3.80

5 gemstones have a specific gravity range that includes 3.80. Specific gravity measures density relative to water — a key diagnostic property for gem identification. Measured by hydrostatic weighing or heavy liquids.

← All SG Values

GemstoneSG RangeRI RangeCrystal SystemHardness
Malachite3.60 – 4.051.655 – 1.909Monoclinic3.5–4
Malaya / Umbalite Garnet3.65 – 3.871.730 – 1.780Cubic7–7.5
Rhodolite Garnet3.74 – 3.941.740 – 1.770Cubic7–7.5
Pyrope Garnet3.62 – 3.871.730 – 1.760Cubic7–7.5
Color-Change Garnet3.65 – 3.801.740 – 1.765Cubic7–7.5
Try GemID Free →