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Hydronephelite

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Colour:
Usually white, may be ...
Name:
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.

Classification of Hydronephelite

Explanation of status:
Re-studied by Thugutt, St. J., Ein Mikrochemischer Beweis der Zusammensetzen Natur des Hydronephelits nebst Bemerkungen uber die Abstammung der Spreustein, Neus Jahrbuch fur Mineralogie, Geologie und Palaontologie, v. 1, p. 25-36 + plate.
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Physical Properties of Hydronephelite

Colour:
Usually white, may be stained pink to red brown.

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 Hydronephelite

Reference List:
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 Hydronephelite

Localities for Hydronephelite

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.
Canada
 
  • Ontario
    • Hastings Co.
      • Dungannon Township
Ann P. Sabina, rock & Mineral Collecting in Canada, Volume 2, Ontario & Quebec, page 78.
Van King
Greenland
 
  • 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
Paraguay
 
  • Guairá Department
Geological Survey Professional Paper 327 (U.S. Department of the Interior, 1959)
USA
 
  • 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.
Mineral and/or Locality  
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