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Lautenthalite

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Formula:
PbCu4(SO4)2(OH)6 · 3H2O
System:
Monoclinic
Colour:
Green, bright blue
Lustre:
Vitreous
Hardness:
Member of:
Name:
Named by O. Medenbach and W. Gebert in 1993 for the type occurrence at Lauthenthal, Germany, site of an ancient smelter.
Devilline Group.

The lead analogue of devilline and campigliaite.
Difficult to distinguish from both without analytical methods.

Found at several slag localities.


Classification of Lautenthalite

Approved
First Published:
1993
7.DE.70

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
31.6.1.2

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
6 : (AB)5(XO4)2Zq·xH2O

Physical Properties of Lautenthalite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
Green, bright blue
Streak:
White
Hardness (Mohs):
Cleavage:
Distinct/Good
Good on {001} and {010}
Density:
3.84 g/cm3 (Calculated)

Optical Data of Lautenthalite

Type:
Biaxial (-)
RI values:
nα = 1.659(2) nβ = 1.703(2) nγ = 1.732(2)
2V:
Measured: 78° to 79°, Calculated: 78°
Max Birefringence:
δ = 0.073
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r < v strong
Pleochroism:
Weak
Comments:
X= pale blue
Y=Z= blue

Chemical Properties of Lautenthalite

Formula:
PbCu4(SO4)2(OH)6 · 3H2O
Elements listed in formula:

Crystallography of Lautenthalite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 21.642(8) Å, b = 6.040(2) Å, c = 22.544(8) Å
β = 108.2(1)°
Ratio:
a:b:c = 3.583 : 1 : 3.732
Unit Cell Volume:
V 2,799.47 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Tabular crystals, sheaflike or irregular aggregates.
Twinning:
Polysynthetic on {100}

Occurrences of Lautenthalite

Type Occurrence of Lautenthalite

Place of Conservation of Type Material:
Institut fur Mineralogie, Ruhr-Universitat, Bochum, Germany.
Geological Setting of Type Material:
Smelter slag.
Associated Minerals at Type Locality:

Relationship of Lautenthalite to other Species

Member of:
Other Members of Group:
Aldridgeite(Cd,Ca)(Cu,Zn)4(SO4)2(OH)6 · 3H2O
CampigliaiteMn2+Cu4(SO4)2(OH)6 · 4H2O
DevillineCaCu4(SO4)2(OH)6 · 3H2O
KobyasheviteCu5(SO4)2(OH)6·4H2O
Unnamed (Dimorph of Devilline)CaCu4(SO4)2(OH)6 · 3H2O
7.DE.05MangazeiteAl2(SO4)(OH)4 · 3H2O
7.DE.10CarbonatecyanotrichiteCu4Al2(CO3,SO4)(OH)12 · 2H2O
7.DE.10CyanotrichiteCu4Al2(SO4)(OH)12 · 2H2O
7.DE.10UKI-1975-(SO:AlCu)(Cu, Al, SO4, H2O)
7.DE.15SchwertmanniteFe163+(OH,SO4)12-13O16 · 10-12H2O
7.DE.20TlalociteCu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O
7.DE.25UtahiteCu5Zn3(TeO4)4(OH)8 · 7H2O
7.DE.35CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
7.DE.40OsakaiteZn4(SO4)(OH)6 · 5H2O
7.DE.45WilcoxiteMgAl(SO4)2F · 17H2O
7.DE.50Stanleyite(V4+O)(SO4) · 6H2O
7.DE.55McalpineiteCu3(Te6+O6)
7.DE.60HydrobasaluminiteAl4(SO4)(OH)10 · 12-36H2O
7.DE.62VolaschioiteFe4(SO4)O2(OH)6 · 2H2O
7.DE.65ZaheriteAl12(SO4)5(OH)26 · 20H2O
7.DE.75CamérolaiteCu6Al3(OH)18(H2O)2[Sb(OH)6](SO4)

Other Names for Lautenthalite

Name in Other Languages:

Other Information

Other Information:
Reacts readily with HCl to form a residue of PbS04.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Lautenthalite

Reference List:
Medenbach, O., Gebert, W. (1993) Lautenthalite, PbCu4[(OH)6|(SO4)2]•3H2O, the Pb analogue of devillite: A new mineral from the Harz mountains, Germany. Neues Jahrbuch für Mineralogie, Monatshefte: 1993: 401-407.

Jambor, J.L., Roberts, A.C., Puziewicz, J. (1994) New mineral names. American Mineralogist: 79: 570-574.

Sabelli, C., Zanazzi, P.F. (1972) The crystal structure of devillite. Acta Crystallographica: B28: 1182-1189.

Internet Links for Lautenthalite

mindat.org URL:
https://www.mindat.org/min-2347.html
Please feel free to link to this page.

Localities for Lautenthalite

This 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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Austria
 
  • Styria
    • Niedere Tauern
      • Öblarn
        • Walchen
Schebesta, K. (1992): Schlackenminerale aus der Walchen bei Öblarn. Lapis 17 (2), 19-30; 50.
France
 
  • Occitanie
    • Lozère
      • Pont-de-Montvert
        • Vialas
No reference listed
Germany
 
  • Lower Saxony
    • Harz
      • Goslar
        • Grane Reservoir
Confirmed by mr. Steve Rust.
      • Lautenthal
O. Medenbach et al.: N. Jb. Mineral. Mh. 401-407 (1993)
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Plaka
          • Plaka Mines
No reference listed
        • Sounion Area
          • Agia Varvara Mines (St Barbara Mines)
No reference listed
Italy
 
  • Tuscany
    • Livorno Province
      • Campigliese (Campiglia Mountains; Campiglia Ridge)
        • Sassetta
          • Canina Valley
Jansen, H. & van den Berg, W. (1998): Slakkenmineralen in Toscane (Italië). Gea, no. 4, 109-117 (in Dutch).
Japan
 
  • Honshu Island
    • Tohoku Region
      • Akita Prefecture
Yamada, T. & Hirama, T. (2000) Suisyou, 13, #1, 21-25.; Ohnishi, M., & Shimobayashi, N. (2011). Tsumebite from the Kisamori mine, Akita Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 106(1), 51-56.
UK
 
  • England
    • Cumbria
      • Braithwaite District
        • Coledale
[UKJMM 18:9]; Green, D.I., McCallum, D. & Wood, M. (1997) Cu, Pb, Zn and Ag Minerals from Force Crag Mine, Coledale, Cumbria. UK Journal of Mines & Minerals 18: 10-14.
  • Scotland
    • Dumfries & Galloway
      • Wanlockhead
BMS Database; American Mineralogist, Volume 79, pages 570-574, 1994; Green, D. I. (1987): The minerals of Meadowfoot smelter. UK Journal of Mines and Minerals 2, 3-9.
  • Wales
    • Ceredigion
      • Ceulanymaesmawr
        • Talybont
          • Nant-y-Moch Reservoir area
UKJMM No5
      • Cwmrheidol
        • Ystumtuen
[UKJMM No.15, p23)
      • Llangynfelyn
        • Tre-Taliesin
S Rust Collection
      • Trefeirig
        • Pen-bont Rhydybeddau
S Rust collection
      • Upper Llanfihangell-y-Creuddyn
        • Pontrhydygroes
UKJMM 17
      • Ysbyty Ystwyth
BMS Database
    • Powys
      • Machynlleth
        • Dylife
Mineral and/or Locality  
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