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Larvikite and Mellite Optical Properties


Mellite and Larvikite Optical Properties


Optical Properties

Luster
Pearly   
Vitreous   

Pleochroism
Not Available   
Weak: yellowish brown yellowAnthony et al   

Dispersion
Not Available   
Not Available   

Transparency
Transparent, Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
Not Available   
1.509-1.541   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
Not Available   
0.030   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Larvikite and Mellite Optic Character

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

Similar to their colors, Larvikite and Mellite 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, Larvikite is Translucent and Transparent while Larvikite is Translucent and Transparent in appearance.

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Brown Gemstones


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