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Friedelite
Friedelite

Malachite
Malachite



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Friedelite
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Malachite

Friedelite and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Opaque
1.5 Refractive Index
1.627-1.6631.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
monoclinic
1.8 Birefringence
0.032-0.0350.254
Achroite
0 0.296
1.9 Clarity
Translucent
Gemmological Tables (2004) More from other references

Friedelite and Malachite Optic Character

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

Friedelite and Malachite Transparency

Similar to their colors, Friedelite and Malachite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.