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Hurlbutite
Hurlbutite

Chlorastrolite
Chlorastrolite



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Hurlbutite
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Chlorastrolite

Hurlbutite and Chlorastrolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Chatoyant
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gems
1.5 Refractive Index
1.595-1.6041.7
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/a
Not Available
1.8 Birefringence
0.0090.010
Achroite
0 0.296
1.9 Clarity
Transparent
Gems

Hurlbutite and Chlorastrolite Optic Character

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

Hurlbutite and Chlorastrolite Transparency

Similar to their colors, Hurlbutite and Chlorastrolite 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.