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Cordierite
Cordierite

Opal Ethiopia
Opal Ethiopia



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Cordierite
X
Opal Ethiopia

Cordierite and Opal Ethiopia Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Not Available
1.2 Pleochroism
X = pale yellow
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Not Available
1.5 Refractive Index
Not Available1.42-1.47
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Amorphous
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Not Available
Color grading system

Cordierite and Opal Ethiopia Optic Character

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

Similar to their colors, Cordierite and Opal Ethiopia 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.