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Holmquistite
Holmquistite

Pearl
Pearl



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Holmquistite
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Pearl

Holmquistite and Pearl Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Pearly
1.2 Pleochroism
Strong in shades of violet when dark-colored.Anthony et al
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Translucent, Opaque
1.5 Refractive Index
1.622-1.6661.52-1.66
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
Orthorhombic
1.8 Birefringence
Not Available0.156
Achroite
0 0.296
1.9 Clarity
Transparent
Translucent

Holmquistite and Pearl Optic Character

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

Similar to their colors, Holmquistite and Pearl 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.