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Pectolite
Pectolite

Malachite
Malachite



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Pectolite
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Malachite

Pectolite and Malachite Optical Properties

1 Optical Properties
1.1 Luster
Silky
Adamantine, Vitreous, Silky, Fibrous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANone
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Opaque
1.5 Refractive Index
1.595-1.6451.655-1.909
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
monoclinic
1.8 Birefringence
0.028-0.0380.254
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Pectolite and Malachite Optic Character

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

Pectolite and Malachite Transparency

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