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Anthophyllite
Anthophyllite

Malachite
Malachite



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Anthophyllite
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Malachite

Anthophyllite and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
When Fe-rich
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.603-1.6901.655-1.909
Agate Opal
1 3.25
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 Available0.254
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Anthophyllite and Malachite Optic Character

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

Similar to their colors, Anthophyllite and Malachite 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.