Honey Opal and Dravite Optical Properties

Honey Opal

Dravite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Very strong: pale yellow colorless

1.3 Dispersion

None0.02

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.37-1.521.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

1.8 Birefringence

Not Available0.014-0.032

0 0.296

1.9 Clarity

Transparent

Honey Opal and Dravite Optic Character

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

Similar to their colors, Honey Opal and Dravite 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, Honey Opal is Transparent while Honey Opal is Transparent in appearance.