Black Opal and Oligoclase Optical Properties

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Black Opal

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Oligoclase

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Black Opal

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Oligoclase

Black Opal

Black Opal

Oligoclase

Oligoclase

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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

-

-

0.01

Transparent, Translucent

1.370-1.470

-

-

-9999

Transparent

Vitreous

-

0.01

-

1.538-1.550

-

-

0.010

TransparentUlrich Henn and Claudio C. Milisenda

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