Home Sanidine
VIII - Tectosilicates (Feldspar Group)
Crystal habit of Sanidine

Name   Sanidine
Chemistry   K[AlSi3O8]
Hardness   6
Lustre   pearly - vitreous
Colour   colourless, white
Streak   white
Density [g/cm3]   2.55
Crystal habit   monoclinic, crystals tabular [010]
Cleavage, Fracture   [001] perfect, [010] good, fracture conchoidal to uneven
other characteristics and occurrences   high temperature modification of K-feldspar in volcanic rocks (trachyts, basalts)

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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