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Peridot
Peridot

Pyrope Almandine
Pyrope Almandine



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Pyrope Almandine

Peridot and Pyrope Almandine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Not Available
1.2 Pleochroism
Weak: yellow-green green (colorless)Herve Nicolas Lazzarelli
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
0.02
Rank: 18 (Overall)
0.02
Rank: 16 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.64-1.69
1.73-1.77
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.036
Not Available
1.9 Clarity
Transparent
TransparentGemdat.org

Peridot and Pyrope Almandine Optic Character

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

Peridot and Pyrope Almandine Transparency

Similar to their colors, Peridot 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, Peridot is Transparent while Peridot is Transparent in appearance.