Quartz and Barite Optical Properties

Quartz

Barite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

None

colorless.

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Not Available

1.5 Refractive Index

1.544-1.553Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Orthorhombic

1.8 Birefringence

0.009Not Available

0 0.296

1.9 Clarity

Opaque

Not Available

Quartz and Barite Optic Character

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

Similar to their colors, Quartz and Barite 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.