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Thaumasite
Thaumasite

Pezzottaite
Pezzottaite



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Thaumasite
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Pezzottaite

Thaumasite and Pezzottaite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky
Vitreous
1.2 Pleochroism
Not Available
Moderate dichroic
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.467-1.5051.598-1.620
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Hexagonal
1.8 Birefringence
0.0380.008-0.011
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Thaumasite and Pezzottaite Optic Character

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

Thaumasite and Pezzottaite Transparency

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