×

Powellite
Powellite
☒

Riesling Beryl
Riesling Beryl
☒



ADD ⊕
Compare
▼
X
Powellite
X
Riesling Beryl
Add ⊕
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Greasy, Subadamantine
In deeply colored specimens: blue greenAnthony et al
0.03
Transparent
1.974-1.984
-
-
-9999
Transparent
 
-
Strongly dichroicMartin H. Read
0.01
-
1.59
-
-
0.004-0.010
-

Compare Blue Gemstones

Blue Gemstones

Sanidine
Sanidine
Sard
Sard
Sardonyx
Sardonyx
Riesling Beryl
Prase Opal
Riesling Beryl Vs Prase Opal
Riesling Beryl
Precious Opal
Riesling Beryl Vs Precious Opal
Riesling Beryl
Pyrophyllite
Riesling Beryl Vs Pyrophyllite

© 2015 - 2026 www.compareusvista.com

Developed & Maintained by softUsvista Inc.