Home Apophyllite
VIII - Phyllosilicates		 Crystal habit of Apophyllite Apophyllite
 
Name   Apophyllite
Chemistry   KCa4[F|(Si4O10)2]·8H2O
Hardness   4.5 - 5
Lustre   pearly
Colour   colourless, white, reddish, yellowish, greenish, transparent, translucent
Streak   white
Density [g/cm3]   2.3 - 2.4
Crystal habit   tetragonal, crystals stabular, foliated, dipyramidal
Cleavage, Fracture   [001] perfect, fracture uneven
other characteristics and occurrences   in cavities of basalts
   
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 © 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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