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Anthophyllite
Anthophyllite

Apatite
Apatite



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Anthophyllite
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Apatite

Anthophyllite and Apatite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
When Fe-rich
Blue stones – strong
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.01
Rank: 27 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.603-1.690
1.628-1.651
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
Hexagonal
1.8 Birefringence
Not Available
0.002-0.008
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Anthophyllite and Apatite Optic Character

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

Similar to their colors, Anthophyllite and Apatite 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.

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