Unnamed (Pb Oxysulphate Hydrate)
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|Formula is also written Pb4O3SO4.H2O.|
White to colourless, lath-shaped (pseudo-orthorhombic) crystals up to 0.7 mm; asssociated with hydrocerussite; formed by anthropogenous processes (concrete used in mine) (Clara mine, Black Forest; Kolitsch, 2000). Subsequent finds show an association with plumbonacrite (Kolitsch, unpubl. data).
Also recently found in a Pb-rich slag from Austria (Kolitsch, data from 2012, in prep.).
Well-known as a synthetic phase (Kuzel, 1973; Steele et al., 1997).
Classification of Unnamed (Pb Oxysulphate Hydrate)
|IMA status:||Hypothetical Mineral|
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Crystallography of Unnamed (Pb Oxysulphate Hydrate)
|Class (H-M):||1 - Pinacoidal|
|Cell Parameters:||a = 6.378(1) Å, b = 7.454(2) Å, c = 10.308(2) Å|
α = 75.26(3)°, β = 79.37(3)°, γ = 88.16(3)°
|Ratio:||a:b:c = 0.856 : 1 : 1.383|
|Unit Cell Volume:||V 465.74 Å³ (Calculated from Unit Cell)|
|Morphology:||Elongate lath-shaped crystals.|
|Comment:||Cell data from Steele et al. (1997).|
Chemical Properties of Unnamed (Pb Oxysulphate Hydrate)
Formula is also written Pb4O3SO4.H2O.
|Simplified for copy/paste:||3PbO·PbSO4·H2O|
|Essential elements:||H, O, Pb, S|
|All elements listed in formula:||H, O, Pb, S|
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Unnamed (Pb Oxysulphate Hydrate)
Kuzel, H.-J. (1973): Hydrothermalsynthese basischer Bleisulfate. – N. Jb. Mineral. Mh. 1973, 110-116. (in German)
Steele, I. M., Pluth, J. J. & Richardson, jr., J. W. (1997): Crystal structure of tribasic lead sulfate (3PbO.PbSO4.H2O) by X-rays and neutrons: an intermediate phase in the production of lead acid batteries. J. Solid State Chem. 132, 173-181.
U. Kolitsch (2000): An assemblage of lead compounds originated due to the influence of concrete from the Clara mine in Middle Black Forest. Erzgräber 14, 48-53. (in German)
Internet Links for Unnamed (Pb Oxysulphate Hydrate)
Localities for Unnamed (Pb Oxysulphate Hydrate)
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.
(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.
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Locality Updated: Hangha, Kenema District, Eastern Province, Sierra LeoneFrom Dana Slaughter, 24th Jul 2014 03:40:45