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Malachite
Malachite

Pyrope Almandine
Pyrope Almandine



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Malachite
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Pyrope Almandine

Malachite and Pyrope Almandine Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Silky, Fibrous
Not Available
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.655-1.9091.73-1.77
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.254Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TransparentGemdat.org

Malachite and Pyrope Almandine Optic Character

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

Malachite and Pyrope Almandine Transparency

Similar to their colors, Malachite and Pyrope Almandine 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, Malachite is Opaque while Malachite is Opaque in appearance.