Linarite and Augite Optical Properties

Linarite

Augite

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1 Optical Properties

1.1 Luster

Sub-Adamantine, Vitreous

Vitreous, Resinous

1.2 Pleochroism

X = pale blue; Y = blue; Z = Prussian blue

Pale green

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.809-1.8591.671-1.774

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

0.050Not Available

0 0.296

1.9 Clarity

Transparent

Linarite and Augite Optic Character

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

Similar to their colors, Linarite 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, Linarite is Transparent while Linarite is Transparent in appearance.