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Rhodolite
Rhodolite

Astrophyllite
Astrophyllite



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Rhodolite
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Astrophyllite

Rhodolite and Astrophyllite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Vitreous
Greasy, Pearly
1.2 Pleochroism
None
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
1.3 Dispersion
NoneNA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004)
Translucent
1.5 Refractive Index
1.7601.678-1.758
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
cubic
Triclinic
1.8 Birefringence
0.010-0.0140.050
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Rhodolite and Astrophyllite Optic Character

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

Rhodolite and Astrophyllite Transparency

Similar to their colors, Rhodolite 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, Rhodolite is Gemmological Tables (2004) while Rhodolite is Gemmological Tables (2004) in appearance.