Lautenthalite
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Formula:
PbCu4(SO4)2(OH)6 · 3H2O
System:
Monoclinic
Colour:
Green, bright blue
Lustre:
Vitreous
Hardness:
2½
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.
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
6/D.19-32
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
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
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):
2½
Cleavage:
Distinct/Good
Good on {001} and {010}
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
Y=Z= blue
Chemical Properties of Lautenthalite
Formula:
PbCu4(SO4)2(OH)6 · 3H2O
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)°
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 |
| Campigliaite | Mn2+Cu4(SO4)2(OH)6 · 4H2O |
| Devilline | CaCu4(SO4)2(OH)6 · 3H2O |
| Kobyashevite | Cu5(SO4)2(OH)6·4H2O |
| Unnamed (Dimorph of Devilline) | CaCu4(SO4)2(OH)6 · 3H2O |
| 7.DE.05 | Mangazeite | Al2(SO4)(OH)4 · 3H2O |
| 7.DE.10 | Carbonatecyanotrichite | Cu4Al2(CO3,SO4)(OH)12 · 2H2O |
| 7.DE.10 | Cyanotrichite | Cu4Al2(SO4)(OH)12 · 2H2O |
| 7.DE.10 | UKI-1975-(SO:AlCu) | (Cu, Al, SO4, H2O) |
| 7.DE.15 | Schwertmannite | Fe163+(OH,SO4)12-13O16 · 10-12H2O |
| 7.DE.20 | Tlalocite | Cu10Zn6(Te6+O4)2(Te4+O3)(OH)25Cl · 27H2O |
| 7.DE.25 | Utahite | Cu5Zn3(TeO4)4(OH)8 · 7H2O |
| 7.DE.35 | Coquandite | Sb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3) |
| 7.DE.40 | Osakaite | Zn4(SO4)(OH)6 · 5H2O |
| 7.DE.45 | Wilcoxite | MgAl(SO4)2F · 17H2O |
| 7.DE.50 | Stanleyite | (V4+O)(SO4) · 6H2O |
| 7.DE.55 | Mcalpineite | Cu3(Te6+O6) |
| 7.DE.60 | Hydrobasaluminite | Al4(SO4)(OH)10 · 12-36H2O |
| 7.DE.62 | Volaschioite | Fe4(SO4)O2(OH)6 · 2H2O |
| 7.DE.65 | Zaherite | Al12(SO4)5(OH)26 · 20H2O |
| 7.DE.75 | Camérolaite | Cu6Al3(OH)18(H2O)2[Sb(OH)6](SO4) |
Other Names for Lautenthalite
Name in Other Languages:
German:Lautenthalit
Spanish:Lautenthalita
Other Information
Not fluorescent.
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.
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.
Please feel free to link to this page.
External Links:
Mineral Dealers:
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.
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(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 | |
| Schebesta, K. (1992): Schlackenminerale aus der Walchen bei Öblarn. Lapis 17 (2), 19-30; 50. |
France | |
| No reference listed |
Germany | |
| Confirmed by mr. Steve Rust. |
| O. Medenbach et al.: N. Jb. Mineral. Mh. 401-407 (1993) |
Greece | |
| No reference listed |
| No reference listed |
Italy | |
| Jansen, H. & van den Berg, W. (1998): Slakkenmineralen in Toscane (Italië). Gea, no. 4, 109-117 (in Dutch). |
Japan | |
| 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 | |
| [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. |
| 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. |
| |
| UKJMM No5 | |
| [UKJMM No.15, p23) |
| S Rust Collection |
| S Rust collection |
| UKJMM 17 |
| BMS Database |
|
Brynarian Mine, Tre-Taliesin, Llangynfelyn, Ceredigion, Wales, UK