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Three distinct types (A, B and C) of secondary pretulite (ScPO4) were found in a single andalusite-diaspore nodule from the quartz core of the pegmatite dyke No. 3, Dolní Bory, Czech Republic. Primary crystallization of the nodule containing pretulite precursors - Sc, Y, U, P-rich zircon and Sc,W-rich ixiolite - proceeded at T≤410°C and P≤2kbar. Subsequent subsolidus hydrothermal alteration at T≈350–300°C...
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