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Riebeckite
Riebeckite

Anthophyllite
Anthophyllite



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Riebeckite
X
Anthophyllite

Riebeckite and Anthophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky
Vitreous, Pearly
1.2 Pleochroism
X = blue
When Fe-rich
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.680-1.6981.603-1.690
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
0.005-0.008Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Riebeckite and Anthophyllite Optic Character

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

Riebeckite and Anthophyllite Transparency

Similar to their colors, Riebeckite and Anthophyllite 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, Riebeckite is Not Available while Riebeckite is Not Available in appearance.