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Sellaite
Sellaite

Idocrase
Idocrase



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Sellaite
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Idocrase

Sellaite and Idocrase Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.378-1.3901.67-1.76
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
tetragonal
1.8 Birefringence
0.012Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Color grading system

Sellaite and Idocrase Optic Character

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

Sellaite and Idocrase Transparency

Similar to their colors, Sellaite and Idocrase 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, Sellaite is Transparent while Sellaite is Transparent in appearance.