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Mellite
Mellite

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Inderite



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Mellite and Inderite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly, Greasy
1.2 Pleochroism
Weak: yellowish brown yellowAnthony et al
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Gemmological Tables (2004)
1.5 Refractive Index
1.509-1.541
1.488-1.505
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
1.8 Birefringence
0.030
0.017
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Mellite and Inderite Optic Character

Mellite and Inderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Mellite and Inderite 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 Mellite and Inderite 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. Inderite has Biaxial/+ character.

Mellite and Inderite Transparency

Similar to their colors, Mellite and Inderite 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, Mellite is Gemmological Tables (2004) More from other references while Mellite is Gemmological Tables (2004) More from other references in appearance.