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Natrolite
Natrolite

Brookite
Brookite



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Natrolite
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Brookite

Natrolite and Brookite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Silky, Pearly
Adamantine
1.2 Pleochroism
NilArthur Thomas
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.478-1.4932.583-2.741
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.012-0.0130.117
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Natrolite and Brookite Optic Character

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

Natrolite and Brookite Transparency

Similar to their colors, Natrolite and Brookite 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, Natrolite is Translucent and Transparent while Natrolite is Translucent and Transparent in appearance.