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Hollandite and Variscite Optical Properties


Variscite and Hollandite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous, Waxy   

Pleochroism
Weak.   
MissingWalter Schumann   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Translucent, Opaque . May be translucent when backlit on the edges.   

Refractive Index
Not Available   
1.560-1.594   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Orthorhombic   

Birefringence
Not Available   
0.031   

Clarity
Not Available   
Translucent   

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Hollandite and Variscite Optic Character

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

Similar to their colors, Hollandite and Variscite 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, Hollandite is Not Available while Hollandite is Not Available in appearance.

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Grey Gemstones


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