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Proustite
Proustite

Hypersthene
Hypersthene



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Proustite
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Hypersthene

Proustite and Hypersthene Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous, Pearly
1.2 Pleochroism
Moderate; cochineal-red to blood-red
Green stones strong: (dark) bluish-green brownish-red (yellowish)Herve Nicolas Lazzarelli
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
OpaqueUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) Rarely transparentMore from other references
Transparent, Translucent
1.5 Refractive Index
2.792-3.0871.673-1.731
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Orthorhombic
1.8 Birefringence
0.295-0.2960.016
Achroite
0 0.296
1.9 Clarity
OpaqueUlrich Henn and Claudio C. Milisenda
Transparent

Proustite and Hypersthene Optic Character

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

Proustite and Hypersthene Transparency

Similar to their colors, Proustite and Hypersthene 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, Proustite is OpaqueUlrich Henn and Claudio C. Milisenda and Gemmological Tables (2004) Rarely transparentMore from other references while Proustite is OpaqueUlrich Henn and Claudio C. Milisenda and Gemmological Tables (2004) Rarely transparentMore from other references in appearance.