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Amblygonite
Amblygonite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Amblygonite
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Vesuvianite Idocrase

Amblygonite and Vesuvianite Idocrase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
weak to none
Not Available
1.3 Dispersion
Albite Optical ..
0.01
Rank: 26 (Overall)
0.02
Rank: 20 (Overall)
Fluorite Optical Properties
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.578-1.646
1.700-1.725
1.6 Optic Character
Biaxial/+
Uniaxial/-
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.020-0.030
0.002-0.012
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Amblygonite and Vesuvianite Idocrase Optic Character

Amblygonite and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Amblygonite and Vesuvianite Idocrase 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 Amblygonite and Vesuvianite Idocrase 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. Amblygonite has Biaxial/+ character.Vesuvianite Idocrase has Uniaxial/- character.

Amblygonite and Vesuvianite Idocrase Transparency

Similar to their colors, Amblygonite and Vesuvianite Idocrase 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, Amblygonite is Gemmological Tables (2004) More from other references while Amblygonite is Gemmological Tables (2004) More from other references in appearance.

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