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Periclase
Periclase

Brookite
Brookite



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Periclase
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Brookite

Periclase and Brookite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
Not Available
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.735-1.7382.583-2.741
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Orthorhombic
1.8 Birefringence
Not Available0.117
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
Gemmological Tables (2004) More from other references

Periclase and Brookite Optic Character

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

Periclase and Brookite Transparency

Similar to their colors, Periclase 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, Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Periclase is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.