Chlorapatite and Common Opal Optical Properties

Chlorapatite

Common Opal

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Weak to moderate; in pale colors.Anthony et al

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent

Translucent

1.5 Refractive Index

1.665-1.6671.37-1.52

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Translucent

Chlorapatite and Common Opal Optic Character

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

Similar to their colors, Chlorapatite and Common Opal 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, Chlorapatite is Transparent while Chlorapatite is Transparent in appearance.