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On an exceptional sample of wooden crystallographic models from the collection of minerals at the École des Mines de Saint-Étienne (France): description, history, digitalization, duplication

Abstract : The École des Mines de Saint-Étienne possesses an important collection of wooden and terracotta crystallographic models (several hundreds). During the 2000s, enhancement and rehabilitation action was undertaken. Several series of Krantz models were identified by the logos and linked to catalogs. The relation of these models to the important work of Paul Heinrich von Groth, in cooperation with the Krantz company, is highlighted. An exceptional element was discovered: a polyhedron with 170 facets, from the cubic system. After a short description of the model, we report on the digitalization work, followed by a description of two duplication methods: 3D printing and precision lost-wax vacuum casting.
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https://hal-emse.ccsd.cnrs.fr/emse-03561496
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Submitted on : Tuesday, February 8, 2022 - 11:59:56 AM
Last modification on : Friday, August 5, 2022 - 2:54:00 PM
Long-term archiving on: : Monday, May 9, 2022 - 6:53:23 PM

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Jean Rieu, Victor Beley, Bernard Guy. On an exceptional sample of wooden crystallographic models from the collection of minerals at the École des Mines de Saint-Étienne (France): description, history, digitalization, duplication. European Journal of Mineralogy, Copernicus, 2022, 34 (1), pp.85 à 94. ⟨10.5194/ejm-34-85-2022⟩. ⟨emse-03561496⟩

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