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OverviewDescribed are manganese minerals of the hollandite group of MO2-type Mn tunnel oxides. The tunnel sites in these structures are occupied mainly by Ba2+ in hollandite, by K+ in cryptomelane, by Na++ in manjiroite, and by Pb2+ in coronadite. All hollandite-group Mn oxides are typically formed at low-temperature conditions. Only hollandite is about equally abundant as a low- and high-temperature phase which distinguishes it from the other members of the group. Since the hollandite-group oxides often contain K as a tunnel cation, they can be used for dating ore emplacement as well as weathering processes by the K - Ar and 40Ar - 39Ar methods. Full Product DetailsAuthor: Gmelin Institute for Inorganic Chemistry of the Max Planck Society for the Advancement of SciencePublisher: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG Imprint: Springer-Verlag Berlin and Heidelberg GmbH & Co. K Edition: 8th edition Weight: 0.748kg ISBN: 9783540937463ISBN 10: 3540937463 Pages: 250 Publication Date: 19 December 1996 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Out of stock ![]() The supplier is temporarily out of stock of this item. It will be ordered for you on backorder and shipped when it becomes available. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |