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Unnamed (Pb Silicate) ?

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Big Photo

Frongoch Mine (Bron-y-Goch Mine; Llawynwnwch Mine), Pontrhydygroes, Upper Llanfihangell-y-Creuddyn, Ceredigion (Dyfed; Cardiganshire), Wales, UK
© Steve Rust

Show Unnamed (Pb Silicate) ? Photos (2)



Formula:
Pb, Si, O, H (?)
Colour:Colourless to white


Groups of lath-like micro crystals, visualy simular to steverustite.
There is a belife that this mineral may infact be steverustite.
The original specimen could not be located after the death of the person who did the element analysis, and this may have been faulty. All subsequent specimens tested have turned out to be steverustite. (Steve Rust 15.11.2010).
Although the original specimen submited for the steverustite paper did have a Pb silicate on it, but the crystals were far to small to any descriptive work. So the Unnamed (Pb Silicate)? is likely to remain in limbo.

Classification of Unnamed (Pb Silicate) ?

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Physical Properties of Unnamed (Pb Silicate) ?

Colour:Colourless to white

Chemical Properties of Unnamed (Pb Silicate) ?

Formula:
Pb, Si, O, H (?)
Essential elements:Pb
All elements listed in formula:H, O, Pb, Si

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

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    • Localities for Unnamed (Pb Silicate) ?

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    UK
     
    • Wales
      • Ceredigion (Dyfed; Cardiganshire)
        • Ceulanymaesmawr
          • Talybont
            • Nant-y-Moch Reservoir area
    		Cooper, M.A., Hawthorne, F.C., Moffatt, E. (2009): Steverustite, Pb2+5(OH)5(Cu1+(S6+O3S2-)3)H2O)2, a new thiosulphate mineral from the Frongoch Mine Dump, Devils Bridge, Ceredigion, Wales: Description and crystal structure. Mineralogical Magazine, 73, 235-250; S. Rust Collection, Nat Hist Museum London
        • Upper Llanfihangell-y-Creuddyn
          • Pontrhydygroes
    		UKJMM 17 unknown F1
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 21st Jun 2011 19:34:24
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    Updated Mineral Entry: LeakeiteFrom Uwe Kolitsch, 13th Feb 2012 17:52:20