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Topaz
Topaz

Agate
Agate



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Topaz
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Agate

Topaz and Agate Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak
Absent
1.3 Dispersion
0.01None
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.606-1.6441.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Trigonal
1.8 Birefringence
0.008-0.0110.004
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Topaz and Agate Optic Character

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

Topaz and Agate Transparency

Similar to their colors, Topaz and Agate 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, Topaz is Transparent while Topaz is Transparent in appearance.