Datolite and Rosasite Optical Properties

Datolite

Rosasite

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1 Optical Properties

1.1 Luster

Vitreous

Silky, Vitreous

1.2 Pleochroism

NilArthur Thomas

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

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.621-1.6751.672-1.688

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

1.8 Birefringence

0.0440.139-0.143

0 0.296

1.9 Clarity

Transparent

Not Available

Datolite and Rosasite Optic Character

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

Compare Green Gemstones

Datolite Vs Elaeolite

Datolite Vs Euclase

Datolite Vs Emerald

Datolite and Rosasite Transparency

Similar to their colors, Datolite 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, Datolite is Transparent while Datolite is Transparent in appearance.