Sarcopside and Astrophyllite Optical Properties

Sarcopside

Astrophyllite

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1 Optical Properties

1.1 Luster

Waxy

Greasy, Pearly

1.2 Pleochroism

Not Available

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TranslucentAnthony et al, Handbook of mineralogy (2001)

Translucent

1.5 Refractive Index

1.670-1.7341.678-1.758

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Triclinic

1.8 Birefringence

Not Available0.050

0 0.296

1.9 Clarity

TranslucentAnthony et al

Translucent

Sarcopside and Astrophyllite Optic Character

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

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Sarcopside and Astrophyllite Transparency

Similar to their colors, Sarcopside and Astrophyllite 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, Sarcopside is Handbook of mineralogy (2001) and TranslucentAnthony et al while Sarcopside is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.