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Adularia
Adularia

Malachite
Malachite



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Adularia
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Malachite

Adularia and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentArthur Thomas, Gemstones (2009)
Opaque
1.5 Refractive Index
1.518-1.5361.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.005-0.0080.254
Achroite
0 0.296
1.9 Clarity
TransparentArthur Thomas
Gemmological Tables (2004) More from other references

Adularia and Malachite Optic Character

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

Adularia and Malachite Transparency

Similar to their colors, Adularia and Malachite 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, Adularia is Gemstones (2009) and TransparentArthur Thomas while Adularia is Gemstones (2009) and TransparentArthur Thomas in appearance.