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Crocoite
Crocoite

Natrolite
Natrolite



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Crocoite
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Natrolite

Crocoite and Natrolite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Silky, Pearly
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
2.31-2.661.478-1.493
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
Orthorhombic
1.8 Birefringence
Not Available0.012-0.013
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Crocoite and Natrolite Optic Character

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

Similar to their colors, Crocoite and Natrolite 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.