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Hurlbutite
Hurlbutite

Matrix Opal
Matrix Opal



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Hurlbutite
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Matrix Opal

Hurlbutite and Matrix Opal Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.595-1.6041.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.009-9999
0 0.296
👆🏻

Clarity

Transparent
-

Hurlbutite and Matrix Opal Optic Character

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

Hurlbutite and Matrix Opal Transparency

Similar to their colors, Hurlbutite and Matrix Opal 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, Hurlbutite is Transparent while Hurlbutite is Transparent in appearance.