  Wavellite.  
Description from the source: 
Wavellite (Al3 (PO4)2 (OH,F)3x5H2O orth.), Tom's Quarry, Kapunda, South Australia, Australia. Radiating colorless crystals on limonitic matrix, from a rich in phosphates locality. 1,9x1x0,8 cm; 3 g. 
Source: Simone Citon 
Contributor: John Gray 
Acquired: 30 September, 2008 
Text Updated: 1 October, 2008 
Price: Trade 
Size: 0.75" 
Composition: Al3(PO4)2(OH,F)3.5H2O
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