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Grand Erg Oriental Desert, Douz, Tunisia
© Rui Nunes 2006
A (more or less) rose-like crystal group formed by precipitation in (usually) arid desert regions containing trapped sand particles. Usually gypsum is the host mineral (Gypsum Rose), but baryte (Baryte Rose), celestine and other minerals can form Desert Rose groups, too.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.