Bowenite and Andesine Optical Properties

Bowenite

Andesine

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1 Optical Properties

1.1 Luster

Waxy, Silky, Resinous, Greasy

Vitreous

1.2 Pleochroism

Not Available

colorless.

1.3 Dispersion

NA0.70

0.007 1

1.4 Transparency

TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.530-1.5751.543-1.564

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Not Available

Triclinic

1.8 Birefringence

Not Available0.007-0.011

0 0.296

1.9 Clarity

TranslucentHerve Nicolas Lazzarelli

Transparent

Bowenite and Andesine Optic Character

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

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Bowenite and Andesine Transparency

Similar to their colors, Bowenite and Andesine 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, Bowenite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli while Bowenite is Blue Chart Gem Identification (2010) and TranslucentHerve Nicolas Lazzarelli in appearance.