Diamond and Astrophyllite Optical Properties

Diamond

Astrophyllite

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Optical Properties

Luster

Adamantine

Greasy, Pearly

Pleochroism

None

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

Dispersion

0.040.12

0.005 1

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Transparency

Transparent, Translucent, Transparent to opaque

Translucent

Refractive Index

2.417-2.4191.678-1.758

1 3.25

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Optic Character

Crystal System

cubic

Triclinic

Birefringence

-99990.050

0 0.296

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Clarity

Transparent

Translucent

Diamond and Astrophyllite Optic Character

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

Compare Precious Gemstones

Diamond Vs Padparadscha

Diamond Vs Pleonaste

Diamond Vs Rhodizite

Diamond and Astrophyllite Transparency

Similar to their colors, Diamond 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, Diamond is Transparent, Translucent and Transparent to opaque while Diamond is Transparent, Translucent and Transparent to opaque in appearance.