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Amber yellow, golden ...
Originally named lewisite in 1895 by Eugen Hussak and George Thurland Prior in honor of William James Lewis [January 10, 1847 Llanwyddelan, Montgomeryshire, Wales, United Kingdom - April 16, 1926 Godalming, Surry, England, United Kingdom], morphological crystallographer and Professor of Mineralogy, Cambridge University, Cambridge, England, UK. Renamed in 2007 in anticipation of systematic names replacing trivial names.
Found as yellow to brown octahedral crystals to 1 mm and as earthy masses

Classification of Hydroxycalcioroméite

Approved 1895 URL:
Please feel free to link to this page.

Occurrences of Hydroxycalcioroméite

Geological Setting:
Sulfosalt veins

Physical Properties of Hydroxycalcioroméite

Sub-Vitreous, Resinous, Earthy
Diaphaneity (Transparency):
Transparent, Translucent
Amber yellow, golden yellow, yellow brown
Pale yelow brown
Hardness (Mohs):
Hardness Data:
4.95 g/cm3 (Measured)    5.31 g/cm3 (Calculated)

Crystallography of Hydroxycalcioroméite

Crystal System:
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Cell Parameters:
a = 10.264Å
Unit Cell Volume:
V 1,081.31 ų (Calculated from Unit Cell)
ICDD 7-66
X-Ray Powder Diffraction Data:
2.94 (100)
1.813 (100)
1.548 (100)
1.179 (50)
1.150 (50)
1.050 (50)
0.989 (50)
ICDD 7-66

Optical Data of Hydroxycalcioroméite


Chemical Properties of Hydroxycalcioroméite

All elements listed in formula:

Relationship of Hydroxycalcioroméite to other Species

Other Members of Group:
Fluorcalcioroméite(Ca,Na,◻)2Sb5+ 2(O,OH)6F
Common Associates:

Other Names for Hydroxycalcioroméite

Name in Other Languages:

Other Information

Not fluorescent in UV
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 Hydroxycalcioroméite

Reference List:
Hussak and Prior (1895) Mineralogical Magazine: 11: 80.

Zeitschrift für Kristallographie (1932): 82: 72.

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.: 1020-1022.

Journal of Solid State Chemistry: (1998): 141: 562-569.

Mineralogical Magazine (2003): 67: 31.

American Mineralogist (1998): 83: 403.

American Mineralogist (1999): 84: 1198.

draft pyrochlore report.

Burke, Ernest A.J. (2007) A Mass Discreditation of GQN Minerals. Canadian Mineralogist: 44(6): 1557-1560.

Internet Links for Hydroxycalcioroméite

Localities for Hydroxycalcioroméite

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.
  • Victoria
    • Loddon Shire
      • Inglewood
Birch, W. D. (2015): Native antimony from Inglewood, Victoria. Australian Journal of Mineralogy 17, 88-90.
  • Lower Austria
    • Waldviertel
      • Geras
        • Kottaun
Kolitsch, U. (2014): 1883) Bismutit, Fluorapatit, Fluorit, Galenit, Hydroxycalcioroméit(?), Kettnerit, Oxyplumboroméit, Pyromorphit, Tetraedrit, gediegen Wismut(?) und Wittichenit aus dem neuen, kleinen Steinbruch („Andradit-Bruch“) nördlich Kottaun, Geras, Waldviertel, Niederösterreich Pp. 117-119 in Niedermayr, G. et al. (2014): Neue Mineralfunde aus Österreich LXIII. Carinthia II, 204./124., 65-146.
  • Minas Gerais
    • Iron Quadrangle
      • Ouro Preto
        • Main district
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: 1022; Contributions to Mineralogy and Petrology (1997): 127: 136; American Mineralogist (1998): 83: 403; American Mineralogist (1999): 84: 1198.; Hussak and Prior (1900) Mineralogical Magazine: 12: 244.
  • Ontario
    • Thunder Bay District
      • Bomby Township
Harris (1989)
  • Guangxi Zhuang Autonomous Region
    • Hechi Prefecture
      • Jinchengjiang District
        • Beixiang - Furongchang ore field
Liangming Fan, Rubo Zhang, and Xingzhen Wang (1983): Geological Review 48(6), 575-577
New Zealand
  • South Island
    • Hindon
Museum Victoria Registration Number: M 48638
  • Värmland
    • Filipstad
Pavel M. Kartashov analytical data (2010) Ulf Nyberg specimens
  • Arizona
    • Cochise Co.
      • Dragoon Mts
        • Johnny Lyon Hills
          • Tres Alamos Wash
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 136, 276, 323.
  • Utah
    • Tooele Co.
      • Sheeprock Mts
        • Little Valley
Norman King
    • Utah Co.
      • Oquirrh Mts
        • Fairfield
          • Clay Canyon
Rocks & Minerals (1970): 45(11): 667-674.; Wendell Wilson (2010) The Clay Canyon Variscite Mine, Fairfield Utah. Mineralogical Record 41:321-349
  • Hà Giang Province
Shunso Ishihara and Pham Tich Xuan (2013)Distribution of some ore metals around the Mau Due stibnite deposits, northernmost Vietnam. Bulletin of the Geological Survey of Japan 64:51-57.
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