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Demantoid Garnet and Steatite Optical Properties


Steatite and Demantoid Garnet Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004)   

Refractive Index
1.88-1.89   
1.539-1.596   

Optic Character
Not Available   
Not Available   

Crystal System
Isometric   
Not Available   

Birefringence
Not Available   
0.046-0.050   

Clarity
Color grading system   
OpaqueUlrich Henn and Claudio C. Milisenda   

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<< Physical Properties

Demantoid Garnet and Steatite Optic Character

Demantoid Garnet and Steatite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Demantoid Garnet and Steatite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Demantoid Garnet and Steatite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

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Demantoid Garnet and Steatite Transparency

Similar to their colors, Demantoid Garnet and Steatite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Demantoid Garnet is Not Available while Demantoid Garnet is Not Available in appearance.

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