Austinite and Euclase Optical Properties

Austinite

Euclase

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1 Optical Properties

1.1 Luster

Subadamantine, Silky, Fibrous

Vitreous

1.2 Pleochroism

Not Available

Weak: colorless-(greenish) yellow

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Not Available

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.7591.650-1.677

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

1.8 Birefringence

0.0240.019-0.025

0 0.296

1.9 Clarity

Not Available

TransparentUlrich Henn and Claudio C. Milisenda

Austinite and Euclase Optic Character

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

Compare Green Gemstones

Austinite Vs Clintonite

Austinite Vs Apophyllite KF

Austinite Vs Cordierite

Austinite and Euclase Transparency

Similar to their colors, Austinite and Euclase 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, Austinite is Not Available while Austinite is Not Available in appearance.