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Microcline
Microcline

Almandine
Almandine



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Microcline and Almandine Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
WeakMichael O’Donoghue
None
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.03
Rank: 15 (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.514-1.539
1.770-1.820
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
cubic
1.8 Birefringence
0.008-0.010
Not Available
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Microcline and Almandine Optic Character

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

Microcline and Almandine Transparency

Similar to their colors, Microcline 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, Microcline is Translucent while Microcline is Translucent in appearance.

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