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Periclase
Periclase

Dioptase
Dioptase



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Periclase
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Dioptase

Periclase and Dioptase Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Weak; dark emerald green
1.3 Dispersion
NA0.04
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
TranslucentHerve Nicolas Lazzarelli
1.5 Refractive Index
1.735-1.7381.644-1.720
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Trigonal
1.8 Birefringence
Not Available0.051-0.053
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
TranslucentHerve Nicolas Lazzarelli

Periclase and Dioptase Optic Character

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

Similar to their colors, Periclase and Dioptase 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.