Linarite and Crocoite Optical Properties

Linarite

Crocoite

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1 Optical Properties

1.1 Luster

Sub-Adamantine, Vitreous

Adamantine

1.2 Pleochroism

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

Distinctly trichroic

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

1.5 Refractive Index

1.809-1.8592.31-2.66

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

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

1.8 Birefringence

0.050Not Available

0 0.296

1.9 Clarity

Transparent

Linarite and Crocoite Optic Character

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

Similar to their colors, Linarite and Crocoite 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.