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Holmquistite
Holmquistite

Smoky Quartz
Smoky Quartz



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Holmquistite
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Smoky Quartz

Holmquistite and Smoky Quartz Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Strong in shades of violet when dark-colored.Anthony et al
None
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.622-1.6661.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Hexagonal
1.8 Birefringence
Not Available0.009
Achroite
0 0.296
1.9 Clarity
Transparent
Opaque

Holmquistite and Smoky Quartz Optic Character

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

Holmquistite and Smoky Quartz Transparency

Similar to their colors, Holmquistite and Smoky Quartz 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, Holmquistite is Transparent while Holmquistite is Transparent in appearance.