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Poldervaartite
Poldervaartite

Chalcedony
Chalcedony



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Poldervaartite
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Chalcedony

Poldervaartite and Chalcedony Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Weak: colorless light gray bluish grayAnthony et al
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent, Translucent to opaque
1.5 Refractive Index
1.634-1.6561.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available0.003-0.009
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Poldervaartite and Chalcedony Optic Character

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

Poldervaartite and Chalcedony Transparency

Similar to their colors, Poldervaartite and Chalcedony 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, Poldervaartite is Transparent while Poldervaartite is Transparent in appearance.