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Pyrope Spessartine
Pyrope Spessartine

Dioptase
Dioptase



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Pyrope Spessartine
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Dioptase

Pyrope Spessartine and Dioptase Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Weak; dark emerald green
1.3 Dispersion
Albite Optical ..
0.02
Rank: 16 (Overall)
0.04
Rank: 13 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli
1.5 Refractive Index
1.730-1.820
1.644-1.720
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.027
0.051-0.053
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
TranslucentHerve Nicolas Lazzarelli

Pyrope Spessartine and Dioptase Optic Character

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

Pyrope Spessartine and Dioptase Transparency

Similar to their colors, Pyrope Spessartine and Dioptase 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, Pyrope Spessartine is Gemmological Tables (2004) More from other references while Pyrope Spessartine is Gemmological Tables (2004) More from other references in appearance.