Schultenite and Anthophyllite Optical Properties

Schultenite

Anthophyllite

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1 Optical Properties

1.1 Luster

Vitreous, Adamantine

Vitreous, Pearly

1.2 Pleochroism

Not Available

When Fe-rich

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent

1.5 Refractive Index

1.890-1.9761.603-1.690

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

Not Available

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TransparentAnthony et al

Transparent

Schultenite and Anthophyllite Optic Character

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

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Schultenite and Anthophyllite Transparency

Similar to their colors, Schultenite and Anthophyllite 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, Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al while Schultenite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.