Epidote and Augite Optical Properties

Epidote

Augite

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1 Optical Properties

1.1 Luster

Vitreous, Resinous

1.2 Pleochroism

Strong

Pale green

1.3 Dispersion

0.03NA

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

Transparent, Translucent

1.5 Refractive Index

1.729-1.7681.671-1.774

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.8 Birefringence

0.019-0.046Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

Epidote and Augite Optic Character

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

Similar to their colors, Epidote and Augite 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, Epidote is Gemmological Tables (2004) More from other references while Epidote is Gemmological Tables (2004) More from other references in appearance.