Hardystonite and Rock Crystal Optical Properties

Hardystonite

Rock Crystal

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1 Optical Properties

1.1 Luster

Vitreous, Resinous, Greasy

Not Available

1.2 Pleochroism

Not Available

AbsentWalter Schumann

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

Handbook of mineralogy (2001)

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

1.5 Refractive Index

1.6721.544-1.553

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

tetragonal

Not Available

1.8 Birefringence

Not Available0.009

0 0.296

1.9 Clarity

Handbook of mineralogy (2001)

TransparentWalter Schumann

Hardystonite and Rock Crystal Optic Character

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

Similar to their colors, Hardystonite and Rock Crystal 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.