Clinochlore and Prase Opal Optical Properties

Clinochlore

Prase Opal

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1 Optical Properties

1.1 Luster

Pearly, Greasy

Not Available

1.2 Pleochroism

Distinct: light yellow-green to light bluE

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.571-1.5971.370-1.470

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Clinochlore and Prase Opal Optic Character

Clinochlore and Prase Opal optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Clinochlore and Prase 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 Clinochlore and Prase 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. Clinochlore has Biaxial/+ character.

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Clinochlore Vs Demantoid

Clinochlore Vs Dravite

Clinochlore Vs Dioptase

Clinochlore and Prase Opal Transparency

Similar to their colors, Clinochlore and Prase 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, Clinochlore is Transparent while Clinochlore is Transparent in appearance.