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Click Here for Larger Schmiederite Image in a New Browser Window Images: ... Comments: Acicular schmiederite micro crystals in quartz. ...
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Schmiederite Pb2 Cu2 (Se4+ O3 )(Se6+ O4 )(OH)4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m. Fibrous crystals, to 1 mm, in spherical, radial, or irregular aggregates, may be in crusts;
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The Pb atom in linarite and the Pb(1) atom in schmiederite have each three Pb--O ... Schmiederite is a very rare mineral. Obviously it was found 1962 by J. ...
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schmiederite, Pb2Cu2(SeO3)(SeO4)(OH)4. Their structure was solved by Effenberger (1987). ... to the schmiederite structural type. Thus, the structural ...
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It very soon became apparent that schmiederite would play a late but important part in the history of linarite from the UK. Many collectors have fine examples of linarite in there collections, from a number of UK and world locations.
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Schmiederite is a basic lead copper selenite selenate, while Munakataite is a basic lead copper selenite sulfate (Matsubara, 2008). Doing the simple stoichiometric calculation, an ideal example of Munakataite should have 4.7 percent sulfur, and an ideal Schmiederite should have no sulfur.
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Sep 1, 2009 ... Frost, Ray L. and Keeffe, Eloise C. (2008) Raman spectroscopic study of the schmiederite Pb2Cu2[(OH)4|SeO3|SeO4].
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Raman bands of schmiederite at 1095 and 934 cm-1 are assigned to the ... the concept of non-equivalent OH units in the schmiederite structure. ...
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Raman bands of schmiederite at 1095 and 934 cm−1 are assigned ... spectrum of schmiederite. The band at 834 cm−1 is assigned to the symmetric (SeO3)2− ...
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Minute spherical schmiederite aggregates from Llechweddhelyg Mine, ... Introduction: schmiederite is a secondary mineral found in the oxidized zone of lead- ...
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