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Siderite
Siderite
☒

Ruby
Ruby
☒



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Siderite
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Ruby
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly
-
0.04
Transparent, Translucent
1.633-1.875
-
Trigonal
0.242
Transparent
 
Vitreous, Adamantine
Strong: purplish-red
0.02
Transparent, Translucent, Transparent to opaque
1.762-1.778
-
Trigonal
0.008
Transparent

Compare Yellow Gemstones

Yellow Gemstones

Sphene
Sphene
Golden Beryl
Golden Beryl
Druzy
Druzy
Ruby
Sulphur
Ruby Vs Sulphur
Ruby
Tinzenite
Ruby Vs Tinzenite
Ruby
Topazolite
Ruby Vs Topazolite

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