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Calcite
Calcite

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Orthoclase



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Orthoclase

Calcite and Orthoclase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Vitreous, Pearly
1.2 Pleochroism
NilArthur Thomas
colorless.
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
0.01
Rank: 28 (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.486-1.658
1.518-1.536
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
monoclinic
1.8 Birefringence
0.154-0.174
0.0050-0.0060
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Calcite and Orthoclase Optic Character

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

Calcite and Orthoclase Transparency

Similar to their colors, Calcite and Orthoclase 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, Calcite is Translucent and Transparent while Calcite is Translucent and Transparent in appearance.

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