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Mottramite
Mottramite

Pyrope Almandine
Pyrope Almandine



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Mottramite
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Pyrope Almandine

Mottramite and Pyrope Almandine Optical Properties

Optical Properties

Luster

Greasy
-

Pleochroism

Visible X=Y= canary yellow to greenish yellow
-

Dispersion

0.040.02
0.005 1
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Transparency

-
TransparentGemdat.org

Refractive Index

2.1701.73-1.77
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.150-9999
0 0.296
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Clarity

-
TransparentGemdat.org

Mottramite and Pyrope Almandine Optic Character

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

Mottramite and Pyrope Almandine Transparency

Similar to their colors, Mottramite 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, Mottramite is while Mottramite is in appearance.