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Anthophyllite
Anthophyllite

Datolite
Datolite



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Anthophyllite
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Datolite

Anthophyllite and Datolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
When Fe-rich
NilArthur Thomas
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.603-1.6901.621-1.675
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
monoclinic
1.8 Birefringence
Not Available0.044
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Anthophyllite and Datolite Optic Character

Anthophyllite and Datolite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anthophyllite and Datolite 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 Anthophyllite and Datolite 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. Anthophyllite has Biaxial/+ character.

Anthophyllite and Datolite Transparency

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