Californite and Powellite Optical Properties

Californite

Powellite

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1 Optical Properties

1.1 Luster

Vitreous

Greasy, Subadamantine

1.2 Pleochroism

Weak; present colour lighter

In deeply colored specimens: blue greenAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TranslucentWalter Schumann, Gemstones of the world (2001)

Transparent

1.5 Refractive Index

1.700-1.7251.974-1.984

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.001-0.012Not Available

0 0.296

1.9 Clarity

TranslucentWalter Schumann

Transparent

Californite and Powellite Optic Character

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

Compare Gems Found in USA

Californite Vs Datolite

Californite Vs Emerald

Californite Vs Diopside

Californite and Powellite Transparency

Similar to their colors, Californite and Powellite 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, Californite is Gemstones of the world (2001) and TranslucentWalter Schumann while Californite is Gemstones of the world (2001) and TranslucentWalter Schumann in appearance.