×

Pargasite
Pargasite

Hematite
Hematite



ADD
Compare
X
Pargasite
X
Hematite

Pargasite and Hematite Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

-
O = brownish red; E = yellowish red

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.613-1.6632.690-3.220
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Trigonal

Birefringence

0.0200.280
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Pargasite and Hematite Optic Character

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

Pargasite and Hematite Transparency

Similar to their colors, Pargasite and Hematite 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, Pargasite is Transparent while Pargasite is Transparent in appearance.