Pleonast and Erythrite Optical Properties

Pleonast

Erythrite

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1 Optical Properties

1.1 Luster

Not Available

Subadamantine, Pearly

1.2 Pleochroism

Not Available

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

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

1.5 Refractive Index

Not Available1.626-1.629

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

monoclinic

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Not Available

Pleonast and Erythrite Optic Character

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

Compare Blue Gemstones

Pleonast Vs Star diopside

Pleonast Vs Azure malachite

Pleonast Vs Blue gold

Pleonast and Erythrite Transparency

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