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Poldervaartite
Poldervaartite

Hematite
Hematite



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Poldervaartite and Hematite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Weak: colorless light gray bluish grayAnthony et al
O = brownish red; E = yellowish red
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.634-1.656
2.690-3.220
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
Not Available
0.280
1.9 Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli

Poldervaartite and Hematite Optic Character

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

Similar to their colors, Poldervaartite and Hematite 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.