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Alunite
Alunite

Moonstone
Moonstone



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Alunite
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Moonstone

Alunite and Moonstone Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous, Pearly
Pearly
1.2 Pleochroism
Not Available
AbsentWalter Schumann
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Transparent to translucent
1.5 Refractive Index
1.5721.518-1.527
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.0200.006-0.007
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Alunite and Moonstone Optic Character

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

Alunite and Moonstone Transparency

Similar to their colors, Alunite and Moonstone 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, Alunite is Not Available while Alunite is Not Available in appearance.