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Periclase
Periclase

Apophyllite
Apophyllite



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Periclase
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Apophyllite

Periclase and Apophyllite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Pearly
1.2 Pleochroism
Not Available
Dichroic (colorless)
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Transparent, Translucent
1.5 Refractive Index
1.735-1.7381.530-1.543
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Uniaxial/-
1.7 Crystal System
Isometric
tetragonal
1.8 Birefringence
Not Available0.000-0.003
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
Transparent

Periclase and Apophyllite Optic Character

Periclase and Apophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Periclase and Apophyllite 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 Apophyllite 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. Apophyllite has Uniaxial/- character.

Periclase and Apophyllite Transparency

Similar to their colors, Periclase and Apophyllite 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.