Hydrogrossular Value, Price, and Jewelry Information


Hydrogrossular differs from the other garnets in that it is never transparent. It ranges from translucent to opaque. The most common color is a bluish green, but they are also found in pink, white, and gray.

Hydrogrossular Value

The International Gem Society (IGS) has a list of businesses offering gemstone appraisal services.

Hydrogrossular Information

DataValue
NameHydrogrossular
Is a Variety ofGrossular
Crystallography Isometric
Refractive Index 1.72 - 1.80
Hardness 6.5 - 7.5
Specific Gravity 3.40- 3.70
Cleavage None
Dispersion 0.028
Heat SensitivitySome
FormulaCa3Al2(SiO4)3-x(OH)4

Hydrogrossular differs from the other garnets in that it is never transparent. It ranges from translucent to opaque. The most common color is a bluish green, but they are also found in pink, white, and gray.

Because of its coloring and translucency, hydrogrossular is often used as a jade substitute. Large pieces are available, which lend themselves to carving.