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Anthophyllite
Anthophyllite
☒

Boulder Opal
Boulder Opal
☒



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Anthophyllite
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Boulder Opal
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
-
0.01
Transparent
1.603-1.690
Biaxial/+
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
-9999
Transparent
 
-
-
0.01
Transparent, Translucent
1.370-1.470
-
-
-9999
Transparent

Compare Brown Gemstones

Brown Gemstones

Axinite
Axinite
Baddeleyite
Baddeleyite
Baryte Barite
Baryte Barite
Boulder Opal
Apatite
Boulder Opal Vs Apatite
Boulder Opal
Apophyllite
Boulder Opal Vs Apophyllite
Boulder Opal
Aragonite
Boulder Opal Vs Aragonite

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