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Calcite
Calcite

Prasiolite
Prasiolite



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Calcite
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Prasiolite

Calcite and Prasiolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
NilArthur Thomas
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Translucent
1.5 Refractive Index
1.486-1.6581.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Trigonal
1.8 Birefringence
0.154-0.1740.009
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Calcite and Prasiolite Optic Character

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

Calcite and Prasiolite Transparency

Similar to their colors, Calcite and Prasiolite 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, Calcite is Translucent and Transparent while Calcite is Translucent and Transparent in appearance.