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Crocoite
Crocoite

Willemite
Willemite



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Crocoite
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Willemite

Crocoite and Willemite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Resinous
1.2 Pleochroism
Distinctly trichroic
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent
1.5 Refractive Index
2.31-2.661.687-1.723
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Trigonal
1.8 Birefringence
Not Available0.028-0.030
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Crocoite and Willemite Optic Character

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

Similar to their colors, Crocoite and Willemite 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.