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Cordierite
Cordierite

Pyrope Almandine
Pyrope Almandine



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Cordierite
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Pyrope Almandine

Cordierite and Pyrope Almandine Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Not Available
1.2 Pleochroism
X = pale yellow
AbsentWalter Schumann
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
Not Available1.73-1.77
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentGemdat.org

Cordierite and Pyrope Almandine Optic Character

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

Cordierite and Pyrope Almandine Transparency

Similar to their colors, Cordierite 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, Cordierite is Not Available while Cordierite is Not Available in appearance.