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Covellite
Covellite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Vesuvianite Idocrase

Covellite and Vesuvianite Idocrase Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Not Available
1.2 Pleochroism
Marked
Not Available
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
OpaqueAnthony et al, Handbook of mineralogy (2001) More from other references
Transparent
1.5 Refractive Index
1.45-2.621.700-1.725
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Uniaxial/-
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
Not Available0.002-0.012
Achroite
0 0.296
1.9 Clarity
OpaqueAnthony et al
Transparent

Covellite and Vesuvianite Idocrase Optic Character

Covellite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Covellite and Vesuvianite Idocrase 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 Covellite and Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

Covellite and Vesuvianite Idocrase Transparency

Similar to their colors, Covellite and Vesuvianite Idocrase 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, Covellite is Handbook of mineralogy (2001) More from other references and OpaqueAnthony et al while Covellite is Handbook of mineralogy (2001) More from other references and OpaqueAnthony et al in appearance.