Colemanite and Moss Agate Optical Properties

Colemanite

Moss Agate

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

NilArthur Thomas

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent

TranslucentWalter Schumann, Gemstones of the world (2001)

1.5 Refractive Index

1.584-1.6151.530-1.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Not Available

1.8 Birefringence

0.028-0.0300.004

0 0.296

1.9 Clarity

Transparent

TranslucentWalter Schumann

Colemanite and Moss Agate Optic Character

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

Similar to their colors, Colemanite and Moss Agate 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, Colemanite is Transparent while Colemanite is Transparent in appearance.