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Poldervaartite
Poldervaartite

Gahnospinel
Gahnospinel



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Poldervaartite
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Gahnospinel

Poldervaartite and Gahnospinel 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
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004)
1.5 Refractive Index
1.634-1.6561.735-1.790
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Poldervaartite and Gahnospinel Optic Character

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

Similar to their colors, Poldervaartite and Gahnospinel 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.