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Scolecite
Scolecite

Alexandrite
Alexandrite



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Scolecite
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Alexandrite

Scolecite and Alexandrite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Fibrous
Vitreous
1.2 Pleochroism
X: colourless Y: colourless Z: colourless
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent, Transparent to nearly opaque
1.5 Refractive Index
1.512-1.5231.739-1.770
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0110.007-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Scolecite and Alexandrite Optic Character

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

Scolecite and Alexandrite Transparency

Similar to their colors, Scolecite and Alexandrite 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, Scolecite is Translucent and Transparent while Scolecite is Translucent and Transparent in appearance.