Erythrite and Copper Optical Properties

Erythrite

Copper

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1 Optical Properties

1.1 Luster

Subadamantine, Pearly

Not Available

1.2 Pleochroism

Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

1.626-1.629Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

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

Erythrite and Copper Optic Character

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

Similar to their colors, Erythrite 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, Erythrite is Not Available while Erythrite is Not Available in appearance.