Quartz and Hexagonite Optical Properties

Quartz

Hexagonite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

None

bluish–red

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Transparent

1.5 Refractive Index

1.544-1.5531.599-1.637

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.0090.019-0.028

0 0.296

1.9 Clarity

Opaque

Transparent

Quartz and Hexagonite Optic Character

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

Similar to their colors, Quartz and Hexagonite 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, Quartz is Translucent, Transparent and Transparent to translucent while Quartz is Translucent, Transparent and Transparent to translucent in appearance.