Clinochlore and Watermelon Tourmaline Optical Properties

Clinochlore

Watermelon Tourmaline

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1 Optical Properties

1.1 Luster

Pearly, Greasy

Vitreous

1.2 Pleochroism

Distinct: light yellow-green to light bluE

Not Available

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.571-1.5971.614-1.666

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 Available0.014-0.040

0 0.296

1.9 Clarity

Transparent

TransparentGemdat.org

Clinochlore and Watermelon Tourmaline Optic Character

Clinochlore and Watermelon Tourmaline optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Clinochlore and Watermelon Tourmaline 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 Watermelon Tourmaline 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 Dravite

Clinochlore Vs Demantoid

Clinochlore Vs Dioptase

Clinochlore and Watermelon Tourmaline Transparency

Similar to their colors, Clinochlore and Watermelon Tourmaline 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.