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Piemontite
Piemontite
☒

Ametrine
Ametrine
☒



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Piemontite
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Ametrine
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
visible
0.02
-
1.725-1.756
-
monoclinic
0.025-0.076
-
 
Vitreous
-
0.01
Transparent
1.544-1.553
-
Trigonal
0.009
Transparent

Compare Red Gemstones

Red Gemstones

Carnallite
Carnallite
Bornite
Bornite
Bastnasite
Bastnasite
Ametrine
Nickeline
Ametrine Vs Nickeline
Ametrine
Polyhalite
Ametrine Vs Polyhalite
Ametrine
Vanadinite
Ametrine Vs Vanadinite

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