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  Home  >>  Mineral Encyclopedia  >>  Mineral Photos  >>  Heulandite-Heulandite
Heulandite
Chemical
Formula
 (Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
Species
 Silicates
Mohs
Scale
 3
Specific
Gravity
 2.17
Color
 White
Streak
 White
Luster
 Vitreous, Pearly
Refractive
Index
 n = 1.476 - 1.506 n = 1.479 - 1.510 n = 1.479 - 1.517
Heulandite8347
Heulandite8347
Heulandite8346
Heulandite8346

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