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Coral
Coral

Poldervaartite
Poldervaartite



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Coral
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Poldervaartite

Coral and Poldervaartite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Weak: colorless light gray bluish grayAnthony et al
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
1.486-1.6581.634-1.656
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.160-0.172Not Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Coral and Poldervaartite Optic Character

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

Coral and Poldervaartite Transparency

Similar to their colors, Coral and Poldervaartite 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, Coral is Translucent while Coral is Translucent in appearance.