Hematite and Rock Crystal Optical Properties

Hematite

Rock Crystal

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

1.2 Pleochroism

O = brownish red; E = yellowish red

AbsentWalter Schumann

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

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

1.5 Refractive Index

2.690-3.2201.544-1.553

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.2800.009

0 0.296

1.9 Clarity

OpaqueHerve Nicolas Lazzarelli

TransparentWalter Schumann

Hematite and Rock Crystal Optic Character

Hematite and Rock Crystal optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hematite and Rock Crystal 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 Rock Crystal 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 Gems for Aquarius

Hematite Vs Turquoise

Hematite Vs Angelite

Hematite and Rock Crystal Transparency

Similar to their colors, Hematite and Rock Crystal 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.