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Magnetite
Magnetite

Apatite
Apatite



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Magnetite
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Apatite

Magnetite and Apatite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Blue stones – strong

Dispersion

0.200.01
0.005 1
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Transparency

-
-

Refractive Index

2.421.628-1.651
1 3.25
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Optic Character

-
-

Crystal System

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Hexagonal

Birefringence

-99990.002-0.008
0 0.296
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Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Magnetite and Apatite Optic Character

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

Magnetite and Apatite Transparency

Similar to their colors, Magnetite and Apatite 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, Magnetite is while Magnetite is in appearance.