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Orthoclase
Orthoclase

Microcline
Microcline



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Orthoclase
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Microcline

Orthoclase and Microcline Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous
1.2 Pleochroism
colorless.
WeakMichael O’Donoghue
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Translucent
1.5 Refractive Index
1.518-1.5361.514-1.539
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1
1.8 Birefringence
0.0050-0.00600.008-0.010
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Orthoclase and Microcline Optic Character

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

Orthoclase and Microcline Transparency

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