• Monsmedite Mineral Data

    webmineral.com/data/Monsmedite.shtml Visit our Advertisers for Monsmedite : Dakota Matrix Minerals Google Search for Monsmedite John Betts Fine Minerals Search for Monsmedite McDougall Minerals Google Search for Monsmedite Weinrich Minerals, Inc. Google Search for Monsmedite. Ask about Monsmedite here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's ...
  • Monsmedite: Mineral information, data and localities.

    www.mindat.org/min-2759.html Originally thought to be a Tl-analogue of voltaite. Johan, Z., G. Udubasa, and J. Zemann (2009): "Monsmedite", a discredited potassium thallium sulphate mineral from Baia Sprie and its identity with voltaite: The state of the art.
  • DETAILED STUDY OF “MONSMEDITE” SPECIMENS FROM THE ORIGINAL ...

    www.ubm.ro/sites/CJEES/viewTopic.php “Monsmedite”, originally described as a unique, Tl(III)-rich mineral of Tl 2 O 3 ·K 2 O·8SO 3 ·15H 2 O formula from Baia Sprie, Romania, was reinvestigated using authentic specimens from the original finder of the mineral. “Monsmedite” is discredited as voltaite but the discreditation was based on specimens of unspecified origin, as the type material had been lost.
  • Discussions - mindat.org

    www.mindat.org/mesg-145823.html "Monsmedite" was described half a century ago as a new potassium thallium sulphate mineral occurring in Baia Sprie, Romania. It was reported to occur as very dark green, morphologically cubic crystals with idealized formula Tl 2 O 3.K 2 O.8SO 3.15H 2 O. Many of the data published are close to those of usual voltaite, but the chemical ...
  • Voltaite Mineral Data - webmineral.com

    www.webmineral.com/data/Voltaite.shtml 07.CC.25 Monsmedite? H8K2Tl2(SO4)8•11(H2O) F d3c 4/m 3 2/m : 07.CC.25 Voltaite K2Fe5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m : 07.CC.25 Zincovoltaite K2Zn5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m : 07.CC.25 Pertlikite! K2(Fe,Mg)2(Mg,Fe)4Fe2Al(SO4)12•18H2O I 4 1 /acd 4/m 2/m 2/m : Other Voltaite Information: References:
  • CORE

    core.ac.uk/display/50057341 International audience"Monsmedite" was described half a century ago as a new potassium thallium sulphate mineral occurring in Baia Sprie, Romania. It was reported to occur as very dark green, morphologically cubic crystals with idealized formula Tl2O3.K2O.8SO3.15H2O.
  • Detailed study of “monsmedite” specimens from the original ...

    www.researchgate.net/.../257578638_Detailed_study_of_monsmedite_specimens_fro... Request PDF on ResearchGate | Detailed study of “monsmedite” specimens from the original (1963) find, Baia Sprie, Baia Mare Ore District (Romania). | “Monsmedite”, originally described as ...
  • Polyhalite - hyperleap.com

    hyperleap.com/topic/Polyhalite Polyhalite is an evaporite mineral, a hydrated sulfate of potassium, calcium and magnesium with formula: K 2 Ca 2 Mg(SO 4 ) 4 ·2H 2 O. Polyhalite crystallizes in the triclinic system, although crystals are very rare.
  • Sulfate minerals - Wikipedia

    en.wikipedia.org/wiki/Sulfate_minerals The sulfate minerals are a class of minerals that include the sulfate ion (SO 4 2−) within their structure. The sulfate minerals occur commonly in primary evaporite depositional environments, as gangue minerals in hydrothermal veins and as secondary minerals in the oxidizing zone of sulfide mineral deposits.
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