Holmquistite and Intermediate Gold Nuggets Optical Properties

Holmquistite

Intermediate Gold Nuggets

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Strong in shades of violet when dark-colored.Anthony et al

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Not Available

1.5 Refractive Index

1.622-1.666Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Trigonal

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Not Available

Holmquistite and Intermediate Gold Nuggets Optic Character

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

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Holmquistite and Intermediate Gold Nuggets Transparency

Similar to their colors, Holmquistite and Intermediate Gold Nuggets 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.