Optical Properties of Holmquistite

Holmquistite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

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

1.3 Dispersion

Not Available

Rank: N/A (Overall) ▶

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.622-1.666

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

1.8 Birefringence

Not Available

0 0.296

1.9 Clarity

Transparent

Holmquistite Luster

Optical Properties of Holmquistite are its behavioral responses towards light. While few optical properties can be identified with naked eyes, other require special instruments by the gemologists to identify them. Holmquistite optical properties like luster, clarity, refractive index etc. are used to determine the non-destructive methods during gemstone identification and evaluation.

Holmquistite luster is the quantity of light the crystal reflects when light is incident on it. Holmquistite which is commonly found in Black, Blue, Violet color, is Transparent in nature. It possess Vitreous luster.

Black Gemstones

Holmquistite Refractive Index

Optical properties of a Holmquistite crystal are responsive to the small changes in composition and strain within its crystalline structure. Absolute diligence is therefore necessary during cutting and polishing of the gemstone. All such optical properties are majorly influenced by Physical Properties of Holmquistite.

As we are well aware, refractive index is the phenomenon which is related to bending of light through a medium (crystal). It is used in qualitative analysis of gemstones by gemologists Besides, few gemstones exhibit property of dual refractive indices. This dual nature is known as Birefringence. The value of Holmquistite refractive index is 1.622-1.666. So if you are searching for prominent Black Gemstones, Holmquistite gem is something not miss on, since it has been a favorite pick in the gem wearing community.

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