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Piemontite
Piemontite

Grossular
Grossular



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Piemontite
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Grossular

Piemontite and Grossular Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Greasy, Vitreous
1.2 Pleochroism
visible
None
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.725-1.7561.730-1.760
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
cubic
1.8 Birefringence
0.025-0.0760.020
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Piemontite and Grossular Optic Character

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

Piemontite and Grossular Transparency

Similar to their colors, Piemontite and Grossular 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, Piemontite is Not Available while Piemontite is Not Available in appearance.