Smoky Quartz and Astrophyllite Optical Properties

Smoky Quartz

Astrophyllite

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1 Optical Properties

1.1 Luster

Vitreous

Greasy, Pearly

1.2 Pleochroism

None

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

1.3 Dispersion

0.01NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent

1.5 Refractive Index

1.544-1.5531.678-1.758

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Triclinic

1.8 Birefringence

0.0090.050

0 0.296

1.9 Clarity

Opaque

Translucent

Smoky Quartz and Astrophyllite Optic Character

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

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