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Stones, clods, roots and plant remains can be removed with a soil sieve.
Velleman Metal Detector Basic model with a search depth of 12cm. This metal detector has a 16,5 cm search coil and an analog meter.
Velleman Metal Detector with a search depth of 12cm. This metal detector has a 16 cm search coil and an analog meter.
Velleman CS250 Metal Detector with a search depth of 22 cm. This metal detector has a 24 cm search coil and a LCD display.
An invaluable reference for collectors, gemologists, students and anyone with an interest in the earth sciences.
Ein Buch für 'Forscher', Sammler und Entdecker.
This is a superior reference for rockhounds, geology students and outdoors people with an interest in what's under their feet.
A garden of geologic delights for all Earthlings.
Contains more than 3,000 entries covering all aspects of physical and human geography.
The first field guide that allows amateur rock enthusiasts to identify basic rocks and rock formations in a systematic way.
Rocks and Ice is the English version of a geographical traveling accompaniment to Spitsbergen and East Greenland (68-74°N).
Himalaya is the story of one of the last great wildernesses and, in particular, of the bizarre discoveries and improbable achievements of its pioneers.