Datolite and Omphacite Optical Properties

Datolite

Omphacite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

NilArthur Thomas

Weak: colorless -- very pale green -- very pale green

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent

TranslucentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.621-1.6751.662-1.723

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.044Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Datolite and Omphacite Optic Character

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

Similar to their colors, Datolite and Omphacite 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.