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Adamite
Adamite

Grandidierite
Grandidierite



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Adamite
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Grandidierite

Adamite and Grandidierite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
NilArthur Thomas
visible
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.708-1.7221.578-1.639
Agate Opal
1 3.25
1.6 Optic Character
Biaxial/+
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.031-0.0500.037-0.039
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Adamite and Grandidierite Optic Character

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

Adamite and Grandidierite Transparency

Similar to their colors, Adamite and Grandidierite 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, Adamite is Transparent while Adamite is Transparent in appearance.