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Poldervaartite
Poldervaartite

Friedelite
Friedelite



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Poldervaartite
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Friedelite

Poldervaartite and Friedelite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Weak: colorless light gray bluish grayAnthony et al
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent
1.5 Refractive Index
1.634-1.6561.627-1.663
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
Not Available0.032-0.035
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Poldervaartite and Friedelite Optic Character

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

Similar to their colors, Poldervaartite and Friedelite 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.