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Periclase
Periclase

Almandine
Almandine



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Periclase
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Almandine

Periclase and Almandine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
Not Available
None
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.03
Rank: 15 (Overall)
Fluorite Optical Properties
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.735-1.738
1.770-1.820
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
cubic
1.8 Birefringence
Not Available
Not Available
1.9 Clarity
TransparentWalter Schumann
TransparentUlrich Henn and Claudio C. Milisenda

Periclase and Almandine Optic Character

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

Periclase and Almandine Transparency

Similar to their colors, Periclase and Almandine 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, Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

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