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Caledonite
Caledonite
☒

Sard
Sard
☒



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Caledonite
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Sard
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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
 
Waxy
-
0.01
Translucent
1.535-1.539
-
-
0.008-0.010
Translucent

Compare Blue Gemstones

Blue Gemstones

Cyprine of Berzelius
Cyprine of Berzelius
Dravite
Dravite
Elbaite
Elbaite
Sard
Chrome-Chalcedony
Sard Vs Chrome-Chalcedony
Sard
Chrome Tourmaline
Sard Vs Chrome Tourmaline
Sard
Common Opal
Sard Vs Common Opal

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