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Ilsemannite

Big Photo

Vrchoslav fluorite deposit, Krupka (Graupen), Krušné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic
© Petr Fuchs

Show Ilsemannite Photos (11)
Formula:
Mo
 
3
O
 
8
·nH
 
2
O
Colour:Black, blue-black, or ...
Name:After J.C. Ilsemann (1727-1822), a former Mining Commissioner at Clausthal, Harz, who published an early study of molybdenite (1787).


See also the visually similar mourite.

Classification of Ilsemannite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:4/E.03-30
Nickel-Strunz 10th (pending) edition ID:4.FJ.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
J : Hydroxides with H2O +- (OH); corner-sharing octahedra
Dana 8th edition ID:4.6.3.1

4 : SIMPLE OXIDES
6 : Miscellaneous
Hey's CIM Ref.:7.15.4

7 : Oxides and Hydroxides
15 : Oxides of Mo and W
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Type Occurrence of Ilsemannite

Type Locality:Bad Bleiberg, Bleiberg District, Gailtaler Alpen & Karnische Alpen Mts, Carinthia, Austria
Year of Discovery:1871

Physical Properties of Ilsemannite

Colour:Black, blue-black, or blue; turns blue on exposure

Crystallography of Ilsemannite

Morphology:Earthy masses or crusts; as a stain or disseminated pigment.

Chemical Properties of Ilsemannite

Formula:
Mo
 
3
O
 
8
·nH
 
2
O
Essential elements:H, Mo, O
All elements listed in formula:H, Mo, O

Relationship of Ilsemannite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.FJ.05Meymacite
WO
 
3
·2H
 
2
O
4.FJ.05Sidwillite
MoO
 
3
·2H
 
2
O
4.FJ.10Tungstite
WO
 
3
·H
 
2
O
4.FJ.15Hydrotungstite
WO
 
3
·2H
 
2
O
4.FJ.20Parabariomicrolite
BaTa
 
4
O
 
10
(OH)
 
2
·2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
7.15.1Tugarinovite
MoO
 
2
7.15.2Molybdite
MoO
 
3
7.15.3Sidwillite
MoO
 
3
·2H
 
2
O
7.15.5Tungstite
WO
 
3
·H
 
2
O
7.15.6Hydrotungstite
WO
 
3
·2H
 
2
O
7.15.7Meymacite
WO
 
3
·2H
 
2
O
7.15.8Alumotungstite
(W,Al)(O,OH)
 
3
7.15.9Jixianite
Pb(W,Fe
3+
 
)
 
2
(O,OH)
 
7

Other Names for Ilsemannite

Synonyms:
Molybdenum Blue
Other Languages:
German:Ilsemannit
Molybdänblau
Spanish:Ilsemannita

Other Information

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 Ilsemannite

Reference List:Höfer (1871), Jb. Min.: 566.

Horton (1916), US Bureau of Mines Bulletin 111: 15.

Schaller (1917), WashingtonAc Sc., Journal: 7: 417.

Hess (1923), USGS Bulletin 750A.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 603-604.

Staples, Lloyd William (1951), Ilsemannite and jordisite: American Mineralogist: 36: 609-614.

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    Localities for Ilsemannite

    Hide Locality List
    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.
    Australia
     
    • Queensland
      • Bamford
    		No reference listed
    • Tasmania
      • Scottsdale district
    		Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
    Austria
     
    • Carinthia
      • Gailtaler Alpen & Karnische Alpen Mts
        • Bleiberg District
    		Am Min 36 (1951), 609; G. Niedermayr, I. Praetzel: Mineralien Kärntens, 1995
    L. Kostelka: Der Karinthin, 31./32: 129-132 (1956)
        • Paternion
          • Rubland
    		R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Tyrol
      • North Tyrol
        • Lechtaler Alpen Mts
          • Biberwier
            • Fernpass area
    		Hanneberg, A., Simon, P. & Wolkersdorfer, C. (2009): Galmei und schöne Wulfenite: Der Blei-Zink-Bergbau rund um den Fernpaß in Tirol. Lapis 34 (4), 21-31; 54.
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Poços de Caldas plateau
          • Caldas
    China
     
    • Guangxi Zhuang Autonomous Region
      • Nanning Prefecture
        • Yongning District
    		Min, M.-Z., Luo, X.-Z., Mao, S.-L., Zheng, D.-Y., and Shen, B.-P. (2002): Ore Geology Reviews 19(1/2), 79-93.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Hradec Králové Region
        • Trutnov (Trautenau)
          • Radvanice
    		Jirásek, J.: Thermal Changes of the Rocks in the Dump Pile of the Kateřina Colliery in Radvanice (Eastern Bohemia). Ostrava: VSB – Technical University of Ostrava, Institute of Geological Engineering - 541, 2001. 69 p.
      • Liberec Region
    		Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Krupka (Graupen)
    		Sejkora, J., Breiter, K.: Historický rudní revír Krupka, Krušné hory. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1999, roč. 7, s. 29-45.
    Gabon
     
    • Haut-Ogooué Province
      • Franceville
    		J. Geffroy, J.A. Sarcia, J. Chervet : "Les Minéraux Uranifères Français", 1960, Institut National des Sciences et Techniques Nucléaires / Saclay - PUF.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Münstertal
          • Hof
    		K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Bavaria
      • Upper Bavaria
        • Bad Reichenhall
          • Inzell
            • Kienberg
    		Hegemann, F. (1949): Contributions to Mineralogy and Petrology 1(5/6), 690-715; Lapis 9(1), 11-14 (1984)
    • Saxony
      • Erzgebirge
        • Altenberg
    		Mineralien-Welt, (2), 17-39.
        • Ehrenfriedersdorf
    		Wittern: "Mineralfundorte in Deutschland", 2001
        • Freiberg District
          • Brand-Erbisdorf
            • Himmelsfürst Mine
    		Wittern: "Mineralfundorte in Deutschland", 2001
        • Schmiedeberg
    		Wittern: "Mineralfundorte in Deutschland", 2001
      • Vogtland
        • Oelsnitz
    		Wittern: "Mineralfundorte in Deutschland", 2001
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke & F. Rüger: Lapis 1998(7/8), 26-64
    Guatemala
     
    • Quetzaltenango Department
      • El Palmar
    		Woodrow Thompson fieldtrip specimens.
    Japan
     
    • Nansei Archipelago
      • Kagoshima Prefecture
    		F. Africano, G. Van Rompaey, A. Bernard, F. Le Guern (2002) Deposition of trace elements from high temperature gases of Satsuma-Iwojima volcano. Earth Planets Space 54, 275-286.
    Mexico
     
    • Durango
      • Mun. de Gómez Palacio
        • Sierra de Bermejillo
    		Panczner(1987):239.
    • Sonora
      • Mun. de Moctezuma
    		Lapis 2001(1), 11-40
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasnokamensk
            • Strel'tsovskoe Mo-U ore field
    		P.M. Kartashov data
    Pavel M. Kartashov data
    • Far-Eastern Region
      • Sakhalinskaya Oblast'
        • Kuril Islands
          • Iturup Island
    		http://maurice.strahlen.org/kurilles/kurilles.htm
    Slovenia
     
    Rečnik, A. et al. (2009): Mežica in Slowenien. Mineralien-Welt 20 (4), 40-83
    South Africa
     
    • KwaZulu-Natal Province
    		Minerals of South Africa
    Tajikistan
     
    • Viloyati Sogd (Viloyati Sughd)
      • joint of Zeravshan and Gissar Range
        • Yagnob River
    		P.M. Kartashov data; Belakovski D.I.. Die Mineralien der brennenden Kohlefloze von Ravat in Tadshikistan, Lapis, 1990, N 12 p.21-26. (in German)
    D.I.Belakovskiy data
    UK
     
    • England
      • Co. Durham
        • Billingham
    		Mineralogical Magazine 1959 32 : 172-175.
    USA
     
    • Arizona
      • Apache Co.
        • Navajo Indian Reservation
          • Monument Valley
            • Monument No. 2 channel
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258; Witkind, I.J. & R.E. Thaden (1963), Geology and uranium-vanadium deposits of the Monument Valley area, Apache and Navajo Cos., AZ: 117.
      • Cochise Co.
        • Mule Mts
          • Warren District
    		[MinRec 12:307]
            • Warren
    		 Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258.
      • Coconino Co.
        • Cameron District
          • Cameron
    		Keith (1970), AZ Bur. Mines Bull. 182: 103-159, 202-289; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P. 164-168.
            • Huskon Mines
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258.
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258.
        • Grand Canyon National Park
          • South Rim
            • Orphan District
              • Grand Canyon Village
    		Gornitz, V. (2004), Grand Canyon Uranium: The Orphan Mine, Mineral News: 20(6): 7.
        • Vermillion Cliffs District
    		Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258, 431; Petersen, R.G., et al (1959), An occurrence of rhenium associated with uraninite in Coconino Co., AZ, Econ.Geol.: 54: 254-267.
    • California
      • Kern Co.
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Colorado
      • Boulder Co.
        • Boulder Co. Tungsten District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Jamestown District
    		Minerals of Colorado (1997) E.B. Eckels
      • Clear Creek Co.
        • Idaho Springs District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Costilla Co.
        • McCarty Park Area
    		Minerals of Colorado (1997) Eckels, E. B.
      • Fremont Co.
        • Tallahassee Creek District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Jackson Co.
        • Northgate District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Jefferson Co.
        • Foothill District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
      • Moffat Co.
        • Maybell District
          • Maybell Mines
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Saguache Co.
        • Cochetopa District (Cochetopa Creek District)
    		Minerals of Colorado (1997) Eckels, E. B.
      • San Juan Co.
        • Elk Park
    		Minerals of Colorado (1997) Eckels, E. B.
      • San Miguel Co.
        • Placerville District
    		Minerals of Colorado (1997) Eckels, E. B.
      • Teller Co.
        • Cripple Creek District
    		Min Rec 36:2 pp143-185
    • Nevada
      • Elko Co.
        • Bootstrap District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Esmeralda Co.
        • Tule Canyon District
    		NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada
    NBMG Bull 78 Geology and Mineral Deposits of Esmeralda County, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Eureka Co.
        • Lynn District
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Humboldt Co.
        • Buffalo Mountain District
    		NBMG Spec. Pub. 31 Minerals of Nevada
        • Potosi District
          • Adam Peak
    		[MinRec 16:20]
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Mineral Co.
    		NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
        • San Antone District
      • Washoe Co.
        • Freds Mountain District
    		NBMG Bull 70 Geology and Mineral Resources of Washoe and Storey Counties, Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • McKinley Co.
    		Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
          • Ambrosia Lake area
    		NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
        • Laguna District
    		NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region
    • Oregon
      • Harney Co.
        • Pueblo District (Denio District)
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • South Dakota
      • Fall River Co.
    		R&M 75:3 pp 156-169
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
      • Pennington Co.
    		R&M 75:3 pp 156-169
      • Shannon Co.
    		SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    • Texas
      • Culberson Co.
        • Sierra Diablo
    		R&M 66:3 pp 196-224
      • Karnes Co.
    		Smith, A.E. (1991), Texas Mineral Locations Index, Rocks & Min.: 66(3).
    • Utah
      • Grand Co.
        • La Sal Mts
          • North Mountain
            • La Sal District
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Piute Co.
        • Marysvale District (Marysvale Uranium area)
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • San Juan Co.
        • Elk Ridge
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • White Canyon District
          • Red Canyon
    		UGMS Bull 117 Minerals and Mineral Localities of Utah
          • White Canyon
            • Copper Point
    		UGMS Bull 117 Minerals and Mineral Localities of Utah; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    USGS Bull 1125
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Sevier Co.
        • Gold Mountain District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Uintah Co.
        • Ouray
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Wyoming
      • Carbon Co.
    		Rocks & Minerals 76:383
      • Fremont Co.
        • Gas Hills District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    www.excaliburmineral.com; U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Natrona Co.
        • East Gas Hills District
    		U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    Mineral and/or Locality
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