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United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA
© 2007, JGW
|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
|IMA status:||Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"|
|Strunz 8th edition ID:||6/C.08-20|
|Nickel-Strunz 10th (pending) edition ID:||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
|Dana 8th edition ID:||188.8.131.52|
29 : HYDRATED ACID AND NORMAL SULFATES
8 : A2(XO4)3·H2O
|Hey's CIM Ref.:||25.10.7|
25 : Sulphates
10 : Sulphates of Fe alone
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Type Occurrence of Lausenite
|Type Locality:||United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA|
|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
|Colour:||White; colourless in transmitted light.|
Crystallography of Lausenite
|Morphology:||Lumpy aggregates of minute fibers. Fibers elongated parallel to c.|
Optical Data of Lausenite
|RI values:||nα = 1.548 - 1.598 nβ = 1.628(5) nγ = 1.600 - 1.654|
|Maximum Birefringence:||δ = 0.052 - 0.056|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||r < v weak|
Chemical Properties of Lausenite
|Simplified for copy/paste:||Fe2(SO4)3·6H2O|
|Essential elements:||Fe, H, O, S|
|All elements listed in formula:||Fe, H, O, S|
Relationship of Lausenite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Lausenite
|Other Information:||May be soluble in water.|
|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 Lausenite
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.
American Mineralogist (2005): 90: 411-416.
Internet Links for Lausenite
Localities for Lausenite
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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