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Povondraite
Povondraite

Anthophyllite
Anthophyllite



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Povondraite
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Anthophyllite

Povondraite and Anthophyllite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Vitreous, Pearly
1.2 Pleochroism
Strong: yellow-brown
When Fe-rich
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
Not Available1.603-1.690
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Not Available
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Povondraite and Anthophyllite Optic Character

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

Povondraite and Anthophyllite Transparency

Similar to their colors, Povondraite 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, Povondraite is Translucent while Povondraite is Translucent in appearance.