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(1) It serves to bring some systematic order in sand collections (I hope not just mine),
(2) It is a showcase to display the enormous textural and mineralogical diversity of natural sands,
(2) It is a playground for geology students exploring communicative ways of learning,
(3) It also has a bit of a scientific ambition: It aims to illustrate underlying reasons for the wide textural and mineralogical variety of natural granular media worldwide, precursors to almost equally variable aims to construct a scientific database to investigate geological processes affecting sands and sandstones.
Feel free to navigate (left) or to browse ("Blättern") in the database, using the tollbar to the left.
