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Anthophyllite
Anthophyllite

Amblygonite
Amblygonite



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Anthophyllite
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Amblygonite

Anthophyllite and Amblygonite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
When Fe-rich
weak to none
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.01
Rank: 26 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.603-1.690
1.578-1.646
1.6 Optic Character
Biaxial/+
Biaxial/+
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Triclinic
1.8 Birefringence
Not Available
0.020-0.030
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Anthophyllite and Amblygonite Optic Character

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

Anthophyllite and Amblygonite Transparency

Similar to their colors, Anthophyllite and Amblygonite 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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