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Chromian Alumohydrocalcite

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Formula:
Ca(Al,Cr)2(CO3)2(OH)4 · 4H2O
A variety of Alumohydrocalcite

A chromium-bearing variety of alumohydrocalcite.


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Chemical Properties of Chromian AlumohydrocalciteHide

Formula:
Ca(Al,Cr)2(CO3)2(OH)4 · 4H2O

Other InformationHide

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 Chromian AlumohydrocalciteHide

Reference List:
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Dunning, G.E., J.F. Cooper & J.S. White (1975): Chromian alumohydrocalcite from California and knipovichite discredited. Mineral. Record 6, 180-183.
Dunning, G. E. (2000): Chromian dawsonite and chromian alumohydrocalcite from Orestimba Creek, Stanislaus County, California. Mineralogical Record 31, 333-338.

Internet Links for Chromian AlumohydrocalciteHide

Localities for Chromian AlumohydrocalciteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Japan
 
  • Honshu Island
    • Kanto Region
      • Gunma Prefecture
        • Fujioka
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
USA
 
  • California
    • Santa Clara Co.
      • Diablo Range
        • Black Wonder District
          • Mount Hamilton
Dunning, G.E., J.F. Cooper, and J.S. White (1975) Chromian alumohydrocalcite from California and knipovichite discredited. Mineralogical Record: 6: 180-183; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 198.
    • Stanislaus Co.
      • Diablo Range
        • Orestimba District
          • Rooster Comb
Dunning, G. E. (2000): Chromian dawsonite and chromian alumohydrocalcite from Orestimba Creek, Stanislaus County, California. Mineralogical Record 31, 333-338.
Mineral and/or Locality  
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