Milk Opal and Copper Optical Properties

Milk Opal

Copper

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1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Not Available

1.5 Refractive Index

1.37-1.52Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

Milk Opal and Copper Optic Character

Milk Opal and Copper optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Milk Opal and Copper 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 Milk Opal and Copper 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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Milk Opal Vs Nepheline

Milk Opal Vs Nosean

Milk Opal Vs Natrolite

Milk Opal and Copper Transparency

Similar to their colors, Milk Opal and Copper 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, Milk Opal is Translucent while Milk Opal is Translucent in appearance.