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Lausenite

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Formula:
Fe2(SO4)3·5H2O
Formerly thought to be Fe2(SO4)3·6H2O.
System:
Monoclinic
Colour:
White; colourless in ...
Name:
Named by Gurdon Montague Butler in 1928 in honor of Carl B. Lausen, Mining Engineer, United Verde Mining Company, Arizona, who first discovered the mineral.
May actually be a pentahydrate instead of a hexahydrate.

The only "natural" occurrences of this species are mine fires; therefore, by the current rules, it would not be eligible for consideration as a species in view of its anthropogenic origin.

Classification of Lausenite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
7.CB.70

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
C : Sulfates (selenates, etc.) without additional anions, with H2O
B : With only medium-sized cations
29.8.1.1

29 : HYDRATED ACID AND NORMAL SULFATES
8 : A2(XO4)3·H2O
25.10.7

25 : Sulphates
10 : Sulphates of Fe alone
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Type Occurrence of Lausenite

Place of Conservation of Type Material:
University of Arizona, Tucson and Harvard University, Massachusetts.
Year of Discovery:
1928
Geological Setting of Type Material:
Burning pyritic ore body.

Physical Properties of Lausenite

Silky
Diaphaneity (Transparency):
Transparent
Colour:
White; colourless in transmitted light.
Density:
2.49 g/cm3 (Calculated)

Crystallography of Lausenite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Cell Parameters:
a = 10.679(2) Å, b = 11.053(3) Å, c = 5.567(1) Å
β = 98.89(1)°
Ratio:
a:b:c = 0.966 : 1 : 0.504
Unit Cell Volume:
V 654 ų
Z:
2
Morphology:
Lumpy aggregates of minute fibers. Fibers elongated parallel to c.
Comment:
Data for type specimen. Synthetic material gives similar values.

Optical Data of Lausenite

Type:
Biaxial (-)
RI values:
nα = 1.548 - 1.598 nβ = 1.628(5) nγ = 1.600 - 1.654
Max Birefringence:
δ = 0.052 - 0.056
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v weak

Chemical Properties of Lausenite

Formula:
Fe2(SO4)3·5H2O

Formerly thought to be Fe2(SO4)3·6H2O.
Essential elements:
All elements listed in formula:
Empirical Formula:
Fe23+(SO4)3 · 6H2O

Relationship of Lausenite to other Species

7.CB.05Dwornikite(Ni,Fe)SO4 · H2O
7.CB.05GunningiteZnSO4 · H2O
7.CB.05KieseriteMgSO4 · H2O
7.CB.05Poitevinite(Cu,Fe,Zn)SO4 · H2O
7.CB.05SzmikiteMnSO4 · H2O
7.CB.05SzomolnokiteFeSO4 · H2O
7.CB.05CobaltkieseriteCoSO4 · H2O
7.CB.07SanderiteMgSO4 · 2H2O
7.CB.10BonattiteCuSO4 · 3H2O
7.CB.15Aplowite(Co,Mn,Ni)SO4 · 4H2O
7.CB.15Boyleite(Zn,Mg)SO4 · 4H2O
7.CB.15Ilesite(Mn,Zn,Fe)SO4 · 4H2O
7.CB.15RozeniteFeSO4 · 4H2O
7.CB.15StarkeyiteMgSO4 · 4H2O
7.CB.15DrobeciteCdSO4 · 4H2O
7.CB.15CranswickiteMgSO4 · 4H2O
7.CB.20ChalcanthiteCuSO4 · 5H2O
7.CB.20JôkokuiteMnSO4 · 5H2O
7.CB.20PentahydriteMgSO4 · 5H2O
7.CB.20SiderotilFeSO4 · 5H2O
7.CB.25Bianchite(Zn,Fe)SO4 · 6H2O
7.CB.25Chvaleticeite(Mn,Mg)SO4 · 6H2O
7.CB.25FerrohexahydriteFeSO4 · 6H2O
7.CB.25HexahydriteMgSO4 · 6H2O
7.CB.25Moorhouseite(Co,Ni,Mn)SO4 · 6H2O
7.CB.25Nickelhexahydrite(Ni,Mg,Fe)SO4 · 6H2O
7.CB.30RetgersiteNiSO4 · 6H2O
7.CB.35BieberiteCoSO4 · 7H2O
7.CB.35BoothiteCuSO4 · 7H2O
7.CB.35MallarditeMnSO4 · 7H2O
7.CB.35MelanteriteFeSO4 · 7H2O
7.CB.35Zincmelanterite(Zn,Cu,Fe)SO4 · 7H2O
7.CB.35Alpersite(Mg,Cu)[SO4] · 7H2O
7.CB.40EpsomiteMgSO4 · 7H2O
7.CB.40GoslariteZnSO4 · 7H2O
7.CB.40MorenositeNiSO4 · 7H2O
7.CB.45AlunogenAl2(SO4)3 · 17H2O
7.CB.45Meta-alunogenAl2(SO4)3 · 12H2O
7.CB.50AluminocoquimbiteFeAl(SO4)3 · 9H2O
7.CB.55CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
7.CB.55ParacoquimbiteFe2(SO4)3 · 9H2O
7.CB.55Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
7.CB.60KorneliteFe2(SO4)3 · 7H2O
7.CB.65QuenstedtiteFe2(SO4)3 · 10H2O
7.CB.75LishizheniteZnFe2(SO4)4 · 14H2O
7.CB.75RömeriteFe2+Fe23+(SO4)4 · 14H2O
7.CB.80RansomiteCuFe2(SO4)4 · 6H2O
7.CB.85ApjohniteMn2+Al2(SO4)4 · 22H2O
7.CB.85BíliniteFe2+Fe23+(SO4)4 · 22H2O
7.CB.85Dietrichite(Zn,Fe2+,Mn2+)Al2(SO4)4 · 22H2O
7.CB.85HalotrichiteFeAl2(SO4)4 · 22H2O
7.CB.85PickeringiteMgAl2(SO4)4 · 22H2O
7.CB.85Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
7.CB.85Wupatkiite(Co,Mg,Ni)Al2(SO4)4·22H2O
7.CB.90MeridianiiteMgSO4 · 11H2O
25.10.1SzomolnokiteFeSO4 · H2O
25.10.2RozeniteFeSO4 · 4H2O
25.10.3SiderotilFeSO4 · 5H2O
25.10.4FerrohexahydriteFeSO4 · 6H2O
25.10.5MelanteriteFeSO4 · 7H2O
25.10.6Rhomboclase(H5O2)Fe3+(SO4)2 · 2H2O
25.10.8KorneliteFe2(SO4)3 · 7H2O
25.10.9CoquimbiteFe2-xAlx(SO4)3 · 9H2O, x ~0.5
25.10.10ParacoquimbiteFe2(SO4)3 · 9H2O
25.10.11QuenstedtiteFe2(SO4)3 · 10H2O
25.10.12FerricopiapiteFe5(SO4)6O(OH) · 20H2O
25.10.13MetahohmanniteFe23+(SO4)2O · 4H2O
25.10.14HohmanniteFe23+(SO4)2O · 8H2O
25.10.15ButleriteFe3+(SO4)(OH) · 2H2O
25.10.16ParabutleriteFe3+(SO4)(OH) · 2H2O
25.10.17AmarantiteFe23+(SO4)2O · 7H2O
25.10.18FibroferriteFe3+(SO4)(OH) · 5H2O
25.10.19Hydroniumjarosite(H3O)Fe33+(SO4)2(OH)6
25.10.20RömeriteFe2+Fe23+(SO4)4 · 14H2O
25.10.21BíliniteFe2+Fe23+(SO4)4 · 22H2O
25.10.22CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O

Other Names for Lausenite

Name in Other Languages:
German:Lausenit
Spanish:Lausenita

Other Information

Other Information:
May be soluble in water.
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 Lausenite

Reference List:
Posnjak and Merwin (1922) American Chemical Society Journal: 44: 1965 (artif. compound).

Butler (1928) American Mineralogist: 13: 594.

Lausen (1928) American Mineralogist: 13: 203 (as Rogersite).

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 530.

Tschermaks Mineralogische und Petrographische Mitteilungen (1974): 21: 216.

Srebrodol’skii, B.I. (1974): Lausenite, first find in the USSR. Doklady Acad. Nauk SSSR, 219, 441–442 (in Russian).

Majzlan, J., Botez, C., Stephens, P. W. (2005): The crystal structures of synthetic Fe2(SO4)3(H2O)5 and the type specimen of lausenite. American Mineralogist, 90, 411-416.

Internet Links for Lausenite

Localities for Lausenite

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.
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
Cesnokov, B., Kotrly, M. and Nisanbajev, T. (1998): Brennende Abraumhalden und Aufschlüsse im Tscheljabinsker Kohlenbecken - eine reiche Mineralienküche. Mineralien-Welt, 9 (3), 54-63 (in German).
Ukraine
 
  • L'viv Oblast' (Lviv Oblast'; Lwiw Oblast')
    • L'viv-Volynskii Coal Basin (L'vov-Volynskii Coal Basin)
      • Chervonograd
Srebrodol’skii, B.I. (1974): Lausenite, first find in the USSR. Doklady Acad. Nauk SSSR, 219, 441–442 (in Russian).; Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
USA (TL)
 
  • Arizona
    • Yavapai Co.
      • Black Hills (Black Hill Range)
        • Verde District
          • Jerome
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 530; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 272; Lausen, C. (1928), Hydrous sulphates formed under fumerolic conditions at the United Verde mine, American Mineralogist: 13: 203-229; Butler, G.M. (1928), Corrections to Volume 13, American Mineralogist: 13: 594; Galbraith, F.W. & Brennan (1959), Minerals of Arizona: 62.
Mineral and/or Locality  
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