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Marialite
Marialite

Holmquistite
Holmquistite



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Marialite
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Holmquistite

Marialite and Holmquistite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly, Resinous
Vitreous
1.2 Pleochroism
Not Available
Strong in shades of violet when dark-colored.Anthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.540-1.5501.622-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
0.004-0.008Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Marialite and Holmquistite Optic Character

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

Marialite and Holmquistite Transparency

Similar to their colors, Marialite and Holmquistite 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, Marialite is Translucent and Transparent while Marialite is Translucent and Transparent in appearance.