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Usually white, may be stained pink to red brown.
From being a water-rich alteration product of sodalite that had replaced nepheline.
A Mixture Of:
The type location is Dennis Hill, Litchfield, Maine, USA. Described by Clarke (1886), but later determined to be a mixture of natrolite, "epinatrolite", "hydrargillite" and gibbsite by Thugutt (1910). Probably dominantly natrolite (~80%). Formed by alteration of nepheline (Norway and Paraguay) or sodalite (Maine).
Compare also Spreustein.

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Physical Properties of HydronepheliteHide

Usually white, may be stained pink to red brown.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Sodalite5 photos of Hydronephelite associated with Sodalite on
Cancrinite4 photos of Hydronephelite associated with Cancrinite on
Natrolite2 photos of Hydronephelite associated with Natrolite on
Gibbsite1 photo of Hydronephelite associated with Gibbsite on
Diaspore1 photo of Hydronephelite associated with Diaspore on

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 HydronepheliteHide

Reference List:
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Clarke, F. (1886): The Minerals of Litchfield, Maine, American Journal of Science, third series, 31, 262-272.
Dana (6th edition), p 609.
Troeger, W.E. (1952): Tabellen zur optischen Bestimmung der gesteinsbildenden Minerale. Schweizerbarth, Stuttgart, Germany, xx pp.
Thugutt, S.J. (1932): Arch. Min. Soc. Sci. Varsovie (Warsaw) 8, 141-143 (in Polish).
Stuetzel (1933): Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, 1, 534 (in German). (abstract of Thugutt's 1932 paper)
Dunham, K.C. (1933): American Mineralogist, 18, 374.

Internet Links for HydronepheliteHide

Localities for HydronepheliteHide

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.
  • Ontario
    • Haliburton Co.
      • Glamorgan Township
Armstrong H.S. and Gittins J. (1968) Geology of Glamorgan and Monmouth Townships , Ontario Department of Mines, Open File Report 5021, p.44-46.
Satterly J. (1943) Mineral Occurrences in the Haliburton Area, Ontario Department of Mines, Annual Report ARV52, Pt.2, p.74.
    • Hastings Co.
      • Dungannon Township
Storey C.C. and Vos M.A. (1981) Industrial minerals of the Pembroke-Renfrew area, Ontario Geological Survey, Mineral Deposit Circular 22, pt.2, p.87.
Storey C.C. and Vos M.A. (1981) Industrial minerals of the Pembroke-Renfrew area, Ontario Geological Survey, Mineral Deposit Circular 22, pt.2, p.93-95.
Van King
        • York River area
Ann P. Sabina, rock & Mineral Collecting in Canada, Volume 2, Ontario & Quebec, page 78.
  • Kujalleq
    • Narsaq
Petersen, O.V. (2001): List of all minerals identified in the Ilímaussaq alkaline complex, South Greenland. Geology of Greenland Survey Bulletin. 190, 25-33
  • Guairá Department
Geological Survey Professional Paper 327 (U.S. Department of the Interior, 1959)
  • Hawaii
    • Honolulu Co.
      • Oahu Island
        • Honolulu
Dunham, K.C. (1933): Crystal cavities in lavas from the hawaiian islands, The American Mineralogist, Vol. 18, 369-385.
    • Kauai Co.
      • Kauai Island
Dunham, K.C. (1933) The American Mineralogist, 18, 369-385.
  • Maine
    • Kennebec Co.
      • Litchfield
King, V. and Foord, E., 1994, Mineralogy of Maine, v.1.
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