Tremolite and Rosasite Optical Properties

Tremolite

Rosasite

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1 Optical Properties

1.1 Luster

Vitreous, Silky

Silky, Vitreous

1.2 Pleochroism

Not Available

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.599-1.6371.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

1.8 Birefringence

0.023-0.0280.139-0.143

0 0.296

1.9 Clarity

Transparent

Not Available

Tremolite and Rosasite Optic Character

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

Similar to their colors, Tremolite and Rosasite 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, Tremolite is Transparent while Tremolite is Transparent in appearance.