Sunstone and Microcline Optical Properties

Sunstone

Microcline

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Weak or absentWalter Schumann

WeakMichael OâDonoghue

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent

1.5 Refractive Index

1.53-1.551.514-1.539

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Triclinic

Triclinic Pinacoidal H-M Symbol ( 1) Space Group: C1

1.8 Birefringence

0.007-0.0100.008-0.010

0 0.296

1.9 Clarity

Transparent to translucent

Translucent

Sunstone and Microcline Optic Character

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

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Sunstone and Microcline Transparency

Similar to their colors, Sunstone 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, Sunstone is Translucent, Transparent and Transparent to translucent while Sunstone is Translucent, Transparent and Transparent to translucent in appearance.