Vuursteen in alle tijden
Grondboor & Hamer , Volume 25 - Issue 3 p. 133- 148
„Flint, stone of all ages" is the title of an exposition, arranged by the Maastricht Museum of Natural History on occasion of the International Symposium on Flint on April 26-29, 1969. This exposition, intended for the interested layman, includes five chapters, e.o.: - Flint, what is it and where does it occur? - The origin of flint. - Flint-mining in pre-historic times. - The neolithic flint-mines of Ryckholt, province Limburg, Netherland. - Flint in historic time.
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