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Zincite
Zincite

Steatite
Steatite



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Zincite
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Steatite

Zincite and Steatite Optical Properties

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1 Optical Properties
1.1 Luster
Subadamantine, Resinous
Not Available
1.2 Pleochroism
Very weak
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references
Gemmological Tables (2004)
1.5 Refractive Index
2.013-2.0291.539-1.596
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
0.0160.046-0.050
Achroite
0 0.296
1.9 Clarity
TransparentRobert C. Kammerling
OpaqueUlrich Henn and Claudio C. Milisenda

Zincite and Steatite Optic Character

Zincite and Steatite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Zincite 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 Zincite 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.

Zincite and Steatite Transparency

Similar to their colors, Zincite 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, Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling while Zincite is The Journal of Gemmology (1995) More from other references and TransparentRobert C. Kammerling in appearance.