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Crocoite
Crocoite

Apatite
Apatite



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Crocoite
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Apatite

Crocoite and Apatite Optical Properties

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Adamantine
Distinctly trichroic
0.02
Transparent
2.31-2.66
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
-9999
Transparent
 
Vitreous
Blue stones – strong
0.01
-
1.628-1.651
-
Hexagonal
0.002-0.008
TransparentUlrich Henn and Claudio C. Milisenda

Crocoite and Apatite Optic Character

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

Crocoite and Apatite Transparency

Similar to their colors, Crocoite and Apatite 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, Crocoite is Transparent while Crocoite is Transparent in appearance.