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Brookite
Brookite

Apophyllite KF
Apophyllite KF



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Brookite
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Apophyllite KF

Brookite and Apophyllite KF Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Pearly

Pleochroism

Very weak
-

Dispersion

0.200.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.583-2.7411.530-1.536
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.117-9999
0 0.296
👆🏻

Clarity

-
-

Brookite and Apophyllite KF Optic Character

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

Brookite and Apophyllite KF Transparency

Similar to their colors, Brookite and Apophyllite KF 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, Brookite is while Brookite is in appearance.