Palygorskite Crystallography

Classification

Unclassified Silicate, Palygorskite and Sepiolite Group

Structural Parameters

a=12.78, b=17.89, c=5.21 Å
alpha=90, beta=90, gamma=90°
Space Group: P -1

atom

x/a

y/b

z/c
Mg 0 0.0833 0.5
Si 0.2083 0.1667 0.8333
Si 0.2083 0.1667 0.3333
OH 0.0833 0 0.333
O 0.0833 0.0833 0.833
O 0.0833 0.1667 0.3333
H2O 0.0833 0.1667 0.8333
O 0.25 0 0.8333
H2O 0 0.3333 0.5

Reference

Chisholm, J.E. 1992. Powder-diffraction patterns and structural models for palygorskite. Canadian Mineralogist. 30:61-73.

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Original release: 1 Oct 1998;