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Pleonaste
Pleonaste

Dioptase
Dioptase



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Dioptase

Pleonaste and Dioptase Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Weak; dark emerald green
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.04
Rank: 13 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004)
TranslucentHerve Nicolas Lazzarelli
1.5 Refractive Index
1.780
1.644-1.720
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available
0.051-0.053
1.9 Clarity
Gemmological Tables (2004)
TranslucentHerve Nicolas Lazzarelli

Pleonaste and Dioptase Optic Character

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

Pleonaste and Dioptase Transparency

Similar to their colors, Pleonaste 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, Pleonaste is Gemmological Tables (2004) while Pleonaste is Gemmological Tables (2004) in appearance.