×

Hematite
Hematite

Grossular
Grossular



ADD
Compare
X
Hematite
X
Grossular

Hematite and Grossular Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Greasy, Vitreous
1.2 Pleochroism
O = brownish red; E = yellowish red
None
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
2.690-3.2201.730-1.760
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
cubic
1.8 Birefringence
0.2800.020
Achroite
0 0.296
1.9 Clarity
OpaqueHerve Nicolas Lazzarelli
TransparentUlrich Henn and Claudio C. Milisenda

Hematite and Grossular Optic Character

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

Hematite and Grossular Transparency

Similar to their colors, Hematite 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, Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli while Hematite is Blue Chart Gem Identification (2010) More from other references and OpaqueHerve Nicolas Lazzarelli in appearance.