| | Journal (issue) | "snowflake" type crystal group, acquired in the Tsumeb Mine, Namibia, and once part of the collection of the...Lytle Coleman, Owner/Operator Mine Owner of Lava Cap Thunderegg, Mine Shaft Thunderegg, Eggzilla Thunderegg...crystals on matrix, discovered in the Saint-Salvy Mine, SaintSalvy-de-la-Balme, France. DIDIER DESCOUENS...of cerussite, in this specimen from the Mibladen Mine, Upper Moulouya lead district, Midelt Khenifra Province...Rock H. Currier, and mined at the Mammoth-St Anthony Mine, St. Anthony Deposit, Tiger, Mammoth District | | | Book | 123 Florian Neukirchen Berlin, Germany Gunnar Ries Marxen, Germany ISBN 978-3-030-34345-3 ISBN 978-3-030-34346-0...questions, or otherwise supported us. Berlin, Germany Marxen, Germany June 2019 Florian Neukirchen Gunnar Ries...works at CRB Analyse Service GmbH in Hardegsen (Germany) and in his spare time blogs about geoscientific...is the minimum grade at which it is worthwhile to mine a certain deposit. Everything below it (low-grade...from the Friedrich-Christian Mine in Wildschapbach, Black Forest (Germany) (photo © F. Neukirchen, Markl |
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