Natrolite

Order items by
Apophyllite, Natrolite
Mariánská Skála, Ústí nad Labem, Ústí Region, Bohemia, Czech Republic

Item-No.: MIN5899
Price: 55.00 EUR 
Nathrolite
Soutěsky, Děčín, Ústí Region, Bohemia, Czech Republic

Item-No.: MIN5714
Price: 30.00 EUR 

Synonyms:  Apoanalcite, Cockalite, Crocalite, Epinatrolite, Lehuntite, Needlestone, Portite, Radiolite
Classification:  Silicates, Tektosilicates, Zeolite Group
Chemical formula:  Na2(Si3Al2)O10·2H2O
Crystal system:  Orthorhombic
Density (g/cm3):  2,2 - 2,26 measured, 2,25 calculated
Tenacity:  Brittle
Cleavage:  Perfect on {110}
Fracture:  Irregular/uneven, sub-conchoidal
Hardness (Mohs):  5 - 5,5
Colour:  White, colorless, red, yellow, brown, green, bluish
Lustre:  Vitreous, pearly
Streak:  White
Type locality:  Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

 


 

 


 

 
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Dr. Petr Zajicek
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