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Andradite
Andradite

Dioptase
Dioptase



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Andradite
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Dioptase

Andradite and Dioptase Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Resinous
Vitreous
1.2 Pleochroism
Not Available
Weak; dark emerald green
1.3 Dispersion
0.060.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TranslucentHerve Nicolas Lazzarelli
1.5 Refractive Index
1.88-1.941.644-1.720
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Trigonal
1.8 Birefringence
0.0570.051-0.053
Achroite
0 0.296
1.9 Clarity
Transparent
TranslucentHerve Nicolas Lazzarelli

Andradite and Dioptase Optic Character

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

Andradite and Dioptase Transparency

Similar to their colors, Andradite and Dioptase 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, Andradite is Transparent while Andradite is Transparent in appearance.