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Anthophyllite
Anthophyllite

Rosasite
Rosasite



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Anthophyllite
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Rosasite

Anthophyllite and Rosasite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Silky, Vitreous
1.2 Pleochroism
When Fe-rich
Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.603-1.690
1.672-1.688
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 Available
0.139-0.143
1.9 Clarity
Transparent
Not Available

Anthophyllite and Rosasite Optic Character

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

Anthophyllite and Rosasite Transparency

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