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Caledonite
Caledonite
☒

Dioptase
Dioptase
☒



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Caledonite
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Dioptase
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak
0.05
Transparent
1.818-1.909
-
Orthorhombic
0.091
Transparent
 
Vitreous
Weak; dark emerald green
0.04
TranslucentHerve Nicolas Lazzarelli
1.644-1.720
-
Trigonal
0.051-0.053
TranslucentHerve Nicolas Lazzarelli

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Common Opal
Dioptase Vs Common Opal

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