Variscite and Periclase Optical Properties

Variscite

Periclase

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1 Optical Properties

1.1 Luster

Vitreous, Waxy

Vitreous

1.2 Pleochroism

MissingWalter Schumann

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

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

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

1.5 Refractive Index

1.560-1.5941.735-1.738

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Isometric

1.8 Birefringence

0.031Not Available

0 0.296

1.9 Clarity

Translucent

TransparentWalter Schumann

Variscite and Periclase Optic Character

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

Similar to their colors, Variscite and Periclase 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, Variscite is Opaque . May be translucent when backlit on the edges. and Translucent while Variscite is Opaque . May be translucent when backlit on the edges. and Translucent in appearance.