Hardystonite and Variscite Optical Properties

Hardystonite

Variscite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous, Greasy

Vitreous, Waxy

1.2 Pleochroism

Not Available

MissingWalter Schumann

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

Translucent, Opaque . May be translucent when backlit on the edges.

1.5 Refractive Index

1.6721.560-1.594

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Orthorhombic

1.8 Birefringence

Not Available0.031

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

Translucent

Hardystonite and Variscite Optic Character

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

Similar to their colors, Hardystonite and Variscite 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, Hardystonite is Handbook of mineralogy (2001) while Hardystonite is Handbook of mineralogy (2001) in appearance.