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Lapis lazuli
Lapis lazuli

Clinochlore
Clinochlore



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Lapis lazuli
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Clinochlore

Lapis lazuli and Clinochlore Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Pearly, Greasy
1.2 Pleochroism
AbsentWalter Schumann
Distinct: light yellow-green to light bluE
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent
1.5 Refractive Index
1.500-1.6701.571-1.597
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
Transparent

Lapis lazuli and Clinochlore Optic Character

Lapis lazuli and Clinochlore optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lapis lazuli and Clinochlore 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 Lapis lazuli and Clinochlore 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. Clinochlore has Biaxial/+ character.

Lapis lazuli and Clinochlore Transparency

Similar to their colors, Lapis lazuli and Clinochlore 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, Lapis lazuli is Opaque while Lapis lazuli is Opaque in appearance.