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Pb2Cu2Fe23+(Si4.67Al0.33)O15.33(OH)3 · H2O
Named in 1975 by Sidney A. Williams and Richard A. Bideaux for Dr. Saville Cyrus Creasey (1917 - ) economic geologist, U.S. Geological Survey, in recognition of his geological studies on Arizona localities, particularly the Mammoth-St. Anthony mine.
Visually very similar to green-coloured minerals of the Mixite Group, especially Agardite.

Classification of Creaseyite

Approval Year:

9 : SILICATES (Germanates)
H : Unclassified silicates
H : With Pb

78 : Unclassified Silicates
7 :

14 : Silicates not Containing Aluminum
13 : Silicates of Pb

Optical Data of Creaseyite

Biaxial (+)
RI values:
nα = 1.737 nβ = 1.747 nγ = 1.768
Measured: 69° , Calculated: 70°
Max Birefringence:
δ = 0.031
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
r > v moderate

Chemical Properties of Creaseyite

Pb2Cu2Fe23+(Si4.67Al0.33)O15.33(OH)3 · H2O
IMA Formula:
Cu2Pb2Fe23+Si5O17 · 6H2O
Elements listed in formula:
Common Impurities:

Crystallography of Creaseyite

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cell Parameters:
a = 12.502(8) Å, b = 21.402(11) Å, c = 7.303(6) Å
a:b:c = 0.584 : 1 : 0.341
Unit Cell Volume:
V 1,954.05 ų (Calculated from Unit Cell)

Type Occurrence of Creaseyite

Relationship of Creaseyite to other Species

9.HH.10LuddeniteCu2Pb2Si5O14 · 4H2O
9.HH.20PlumbotsumitePb13(CO3)6(Si10O27) · 3H2O
9.HH.25MolybdophyllitePb8Mg9[Si10O28(OH)8|O2|(CO3)3] · H2O
14.13.2PlumbotsumitePb13(CO3)6(Si10O27) · 3H2O
14.13.3LuddeniteCu2Pb2Si5O14 · 4H2O
14.13.4MolybdophyllitePb8Mg9[Si10O28(OH)8|O2|(CO3)3] · H2O

Other Names for Creaseyite

Name in Other Languages:

Other Information

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 Creaseyite

Reference List:
Williams, S.A. & R.A. Bideaux (1975), Creaseyite, Cu2Pb2(Fe,Al)2Si5O17·6H2O, a new mineral from Arizona and Sonora, Mineralogical Magazine: 40: 227-231.

American Mineralogist: 61: 503.

Malcherek, T., Köslin, B., Schlüter, J. (2013): The crystal structure of creaseyite: a disordered, nanoporous lead iron copper alumosilicate. Zeitschrift für Kristallographie, 228, 134-139.

Internet Links for Creaseyite URL:
Please feel free to link to this page.

Localities for Creaseyite

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.
  • Tarapacá Region
    • El Tamarugal Province
      • Pampa del Tamarugal
        • Camiña
Samples analysed by Dr. Jochen Schluter (Hamburg University), Germany.;
  • Sardinia
    • Carbonia-Iglesias Province
      • Domusnovas
        • Oridda
Orlandi, P. (2011): Zibaldone di mineralogia italiana 2010. Micro, 1/2011, 39 - 42.
    • Sassari Province
      • Ozieri
Olmi F., Sabelli C., Santucci, A., Brizzi, G. (1995): I silicati e i vanadati di Ozieri (SS). Rivista Mineralogica Italiana, 2/1995, 145-160
  • Sonora
    • Mun. de Navojoa
South Africa
  • Northern Cape Province
    • Namakwa District (Namaqualand)
Minerals of South Africa
T. Q. Meyer, W. A. van der Westhuizen, G. J. Beukes, H. de Bruiyn and A. E. Schoch (1986) An Occurrence of the Hydrous Lead-Copper-Iron Silicate Creaseyite in South Africa. Mineralogical Magazine 50:346-348
  • Scotland
    • Dumfries & Galloway
      • Wanlockhead
Creaseyite From Wanlockhead, Dumfries And Galloway,Scotland. UK Journal of Mines and Minerals (2009) Number30, PP13-14
S.Rust Collection
  • Arizona
    • Gila Co.
      • Dripping Spring Mts
        • Banner District
          • Christmas area
            • Christmas
Raman analyzed at the University of Arizona.
    • Maricopa Co.
      • Big Horn Mts
        • Osborn District
          • Tonopah
            • Belmont Mountain
              • Tiger Wash
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192; Allen, G.B. & W. Hunt (1988), The Tonopah-Belmont Mine, Maricopa Co., AZ, Min.Rec.: 19(3): 139-144.
Yang, H., Downs, R.T., Evans, S.H., Jenkins, R.A., Bloch, E.M. (2013): Rongibbsite, Pb2(Si4Al)O11(OH), a new zeolitic aluminosilicate mineral with an interrupted framework from Maricopa County, Arizona, U.S.A. American Mineralogist, 98, 236-241
      • Vulture Mts
        • Vulture District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192, 419; Williams, S.A. & R.A. Bideaux (1975), Creaseyite, Cu2Pb2(Fe,Al)2Si5O17·6H2O, a new mineral from Arizona and Sonora, Mineralogical Magazine: 40: 227-231.
    • Mohave Co.
      • Artillery Mts
        • Rawhide Wash
Michael Cline specimens
      • Cleopatra District
        • Kimble Sub-District
          • Rawhide Wash
Personally collected by Jerry A. Baird in October 2011. PXRD identification on creaseyite by Tony Kampf.
    • Pinal Co.
      • Mammoth District
        • Tiger
          • St. Anthony deposit
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192, 225, 252; Williams, S.A. & R.A. Bideaux (1975), Creaseyite, Cu2Pb2(Fe,Al)2Si5O17·6H2O, a new mineral from Arizona and Sonora, Mineralogical Magazine: 40: 227-231;
  • California
    • San Bernardino Co.
      • Silver Lake District
        • Soda Mts
          • Baker
Collected by and in the collection of Brent Thorne. EDS confirmed by Bob Housley.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne.
Collected by and in the collection of Brent Thorne.
          • Zzyzx (Fort Soda; Soda; Soda Springs; Zzyzx Mineral Spring Resort)
Collected by Brent Thorne and EDS confirmed by Bob Housley; American Mineralogist, Volume 94, pages 1198–1204, 2009
  • Montana
    • Beaverhead Co.
      • Argenta District
        • Argenta
          • Stapleton Gulch
    • Granite Co.
      • South Boulder Creek District (Princeton District)
Min News 20:6 pp11-12
  • Nevada
    • Clark Co.
      • Alunite District
Robert M. Housley (2005) Recent rare mineral finds in southern California and Nevada desert mines. Abstracts from the 2005 Desert Symposium. California State University, Desert Studies Consortium and LSA Associates, Inc.
      • Eldorado Mts
NBMG Spec. Pub. 31 Minerals of Nevada
    • Esmeralda Co.
      • Gold Point District
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Luna Co.
      • Cooks Peak District (Cooke's Peak District)
        • Old Hadley (Graphic) Mining District
Walstrom 2006 New Mexico Mineral Symposium abstracts
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