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Idocrase
Idocrase

Proustite
Proustite



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Idocrase
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Proustite

Idocrase and Proustite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine
1.2 Pleochroism
Not Available
Moderate; cochineal-red to blood-red
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
1.5 Refractive Index
1.67-1.762.792-3.087
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Trigonal
1.8 Birefringence
Not Available0.295-0.296
Achroite
0 0.296
1.9 Clarity
Color grading system
OpaqueUlrich Henn and Claudio C. Milisenda

Idocrase and Proustite Optic Character

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

Idocrase and Proustite Transparency

Similar to their colors, Idocrase and Proustite 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, Idocrase is Not Available while Idocrase is Not Available in appearance.