Clinohedrite and Hematite Optical Properties

Clinohedrite

Hematite

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1 Optical Properties

1.1 Luster

Pearly

Not Available

1.2 Pleochroism

Not Available

O = brownish red; E = yellowish red

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent

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

1.5 Refractive Index

12.690-3.220

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Monoclinic Domatic H-M Symbol (m) Space Group: Aa

Trigonal

1.8 Birefringence

Not Available0.280

0 0.296

1.9 Clarity

Transparent

OpaqueHerve Nicolas Lazzarelli

Clinohedrite and Hematite Optic Character

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

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Clinohedrite and Hematite Transparency

Similar to their colors, Clinohedrite 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, Clinohedrite is Transparent while Clinohedrite is Transparent in appearance.