Hemimorphite and Foitite Optical Properties

Hemimorphite

Foitite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Silky

Vitreous

1.2 Pleochroism

AbsentWalter Schumann

Strong: pale lavender dark blueAnthony et al

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Translucent

TranslucentAnthony et al, Translucent

1.5 Refractive Index

1.614-1.636Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

1.8 Birefringence

0.022Not Available

0 0.296

1.9 Clarity

Transparent

TranslucentAnthony et al

Hemimorphite and Foitite Optic Character

Hemimorphite and Foitite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Hemimorphite and Foitite 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 Hemimorphite and Foitite 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 Green Gemstones

Hemimorphite Vs Lazurite

Hemimorphite Vs Kyanite Cyprine

Hemimorphite Vs Kornerupine

Hemimorphite and Foitite Transparency

Similar to their colors, Hemimorphite and Foitite 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, Hemimorphite is Translucent and Transparent while Hemimorphite is Translucent and Transparent in appearance.