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Malachite
Malachite

Watermelon Tourmaline
Watermelon Tourmaline



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Malachite
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Watermelon Tourmaline

Malachite and Watermelon Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous, Silky, Fibrous
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.655-1.9091.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.2540.014-0.040
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TransparentGemdat.org

Malachite and Watermelon Tourmaline Optic Character

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

Malachite and Watermelon Tourmaline Transparency

Similar to their colors, Malachite and Watermelon Tourmaline 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, Malachite is Opaque while Malachite is Opaque in appearance.