Crocoite and Montebrasite Optical Properties

Crocoite

Montebrasite

Add ⊕

1 Optical Properties

1.1 Luster

Adamantine

Not Available

1.2 Pleochroism

Distinctly trichroic

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

TransparentWalter Schumann, Gemstones of the world (2001) More from other references

1.5 Refractive Index

2.31-2.661.578-1.646

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n

Not Available

1.8 Birefringence

Not Available0.020-0.030

0 0.296

1.9 Clarity

Transparent

TransparentWalter Schumann

Crocoite and Montebrasite Optic Character

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

Compare Red Gemstones

Crocoite Vs Elbaite

Crocoite Vs Fluorite

Crocoite Vs Fire Opal

Crocoite and Montebrasite Transparency

Similar to their colors, Crocoite and Montebrasite 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, Crocoite is Transparent while Crocoite is Transparent in appearance.