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Vishnevite
Vishnevite
☒

Gedrite
Gedrite
☒



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Vishnevite
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Gedrite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
-
0.01
-
1.490-1.507
-
Hexagonal
0.002-0.012
-
 
Vitreous
Weak to moderate
0.02
Transparent
1.625-1.718
-
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
-9999
Transparent

Compare Blue Gemstones

Blue Gemstones

Plumbogummite
Plumbogummite
Riebeckite
Riebeckite
Rosasite
Rosasite
Gedrite
Cordierite
Gedrite Vs Cordierite
Gedrite
Glaucophane
Gedrite Vs Glaucophane
Gedrite
Hauyne
Gedrite Vs Hauyne

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