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Sonolite
Sonolite

Mellite
Mellite



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Sonolite
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Mellite

Sonolite and Mellite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Weak: yellowish brown yellowAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.763-1.7931.509-1.541
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.030
Achroite
0 0.296
1.9 Clarity
TransparentAnthony et al
TransparentUlrich Henn and Claudio C. Milisenda

Sonolite and Mellite Optic Character

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

Sonolite and Mellite Transparency

Similar to their colors, Sonolite 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, Sonolite is Handbook of mineralogy (2001) and TransparentAnthony et al while Sonolite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.