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Hurlbutite
Hurlbutite

Caledonite
Caledonite



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Hurlbutite
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Caledonite

Hurlbutite and Caledonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.595-1.6041.818-1.909
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
Orthorhombic
1.8 Birefringence
0.0090.091
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Hurlbutite and Caledonite Optic Character

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

Similar to their colors, Hurlbutite and Caledonite 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.