Gemstones with SG 2.85

7 gemstones have a specific gravity range that includes 2.85. 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
Larimar2.74 – 2.901.595 – 1.640Triclinic4.5–5
Prehnite2.82 – 2.941.611 – 1.665Orthorhombic6–6.5
Lapis Lazuli2.70 – 2.901.500 – 1.670Aggregate5–6
Grandidierite2.85 – 2.981.590 – 1.623Orthorhombic7–7.5
Morganite2.71 – 2.851.572 – 1.600Hexagonal7.5–8
Turquoise2.60 – 2.901.610 – 1.650Triclinic5–6
Pearl2.60 – 2.851.520 – 1.690Aggregate2.5–4.5
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