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Gedrite
Gedrite

Malachite
Malachite



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Gedrite
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Malachite

Gedrite and Malachite Optical Properties

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1 Optical Properties
1.1 Luster
Fibrous, Vitreous
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
Weak to moderate
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.625-1.7181.655-1.909
Agate Opal
1 3.25
1.5 Optic Character
Not Available
Not Available
1.6 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
monoclinic
1.7 Birefringence
Not Available0.254
Achroite
0 0.296
1.11 Clarity
Transparent
Gemmological Tables (2004) More from other references

Gedrite and Malachite Optic Character

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

Gedrite and Malachite Transparency

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