Hurlbutite and Adularia Optical Properties

Hurlbutite

Adularia

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

TransparentArthur Thomas, Gemstones (2009)

1.5 Refractive Index

1.595-1.6041.518-1.536

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Not Available

1.8 Birefringence

0.0090.005-0.008

0 0.296

1.9 Clarity

Transparent

TransparentArthur Thomas

Hurlbutite and Adularia Optic Character

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

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Hurlbutite and Adularia Transparency

Similar to their colors, Hurlbutite and Adularia 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.