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Record: oai:ARNO:505749

AuthorB.G. Escher
TitleOn a grooved pentagonal Dodecahedron of pyrite
JournalLeidse Geologische Mededelingen
Volume13
Year1942
Issue1
Pages70-75
ISSN0075-8639
AbstractCrystals of the notched or grooved type are known from some minerals which crystallise in the cubic system.
From diamond grooved octahedrons are known, whose grooves remind us of octahedral faces, or the faces of triakis octahedra or hexakis ostahedra. From haĆ¼ynite too grooved octahedrons are pictured, whose grooves are bordered by octahedral faces. Grooved analcite is known in icositetrahedrons, the grooves are bordered by faces of the same icositetrahedron.
Document typearticle
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