Atacamite and Friedelite Optical Properties

Atacamite

Friedelite

Add ⊕

1 Optical Properties

1.1 Luster

Adamantine, Vitreous

Not Available

1.2 Pleochroism

X = pale green; Y = yellow-green; Z = grass-green

NilArthur Thomas

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

1.8311.627-1.663

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m

1.8 Birefringence

0.0490.032-0.035

0 0.296

1.9 Clarity

Not Available

Translucent

Atacamite and Friedelite Optic Character

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

Atacamite Vs Cordierite

Atacamite Vs Clintonite

Atacamite Vs Chlorite group

Atacamite and Friedelite Transparency

Similar to their colors, Atacamite and Friedelite 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, Atacamite is Not Available while Atacamite is Not Available in appearance.