×

Gypsum
Gypsum

Catapleiite
Catapleiite



ADD
Compare
X
Gypsum
X
Catapleiite

Gypsum and Catapleiite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly, Waxy
Vitreous
1.2 Pleochroism
None
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004)
1.5 Refractive Index
1.521-1.5311.590-1.629
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: B2/b (pseudo-HEX)
1.8 Birefringence
0.0100.039
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Gypsum and Catapleiite Optic Character

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

Gypsum and Catapleiite Transparency

Similar to their colors, Gypsum and Catapleiite 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, Gypsum is Translucent and Transparent while Gypsum is Translucent and Transparent in appearance.