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Nuummite
Nuummite
☒

Covellite
Covellite
☒



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Nuummite
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Covellite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
-
-
0.02
-
1.635-1.663
-
-
0.0170-0.230
-
 
Resinous
Marked
0.08
OpaqueAnthony et al
1.45-2.62
-
Hexagonal
-9999
OpaqueAnthony et al

Compare Green Gemstones

Green Gemstones

Sapphirine
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Seraphinite
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Smaragdite
Smaragdite
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Pargasite
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Pumpellyite
Covellite Vs Pumpellyite
Covellite
Pyromorphite
Covellite Vs Pyromorphite

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