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From German "Gwindel", meaning "gewunden" = contorted, twisted, wound.
A variety of Quartz

Quartz crystals that grew along and are slightly rotated around a single a-axis. This results in twisted and tabular crystals.
Found in some alpine-type fissures.

Note: Gwindel-type intergrowths are also known for other minerals.

Classification of Gwindel URL:
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Other Names for Gwindel

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 Gwindel

Reference List:
Žorž, M. (1994): Pyroelectrically caused twisting of quartz crystals. In Geologija, 35th book, 183-206.

Moore, T. P. (2007): Alpine quartz gwindels. Mineralogical Record, 38, 103-121.

Žorž, M. (2009): Quarz-Gwindel. Mineralien-Welt 20 (3), 30-46.

Internet Links for Gwindel

Localities for Gwindel

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.
  • Rhône-Alpes
    • Haute-Savoie
      • Chamonix
        • Mont Blanc Massif (Monte Bianco Massif)
Hède frédéric
Van King
Hède frédéric
  • Hardap Region
    • Rehoboth District
Niedermayr, G. & Schnaitmann, E. A. (2010): Neuigkeiten aus Namiba. Mineralien-Welt 21 (6), 89-96.
  • Grischun (Grisons; Graubünden)
    • Vorderrhein Valley
      • Russein Valley
        • Cavardiras Valley
Photo ID: 432242
      • Tujetsch (Tavetsch)
        • Curnera Valley
Yaiba Sakaguchi
  • Wallis (Valais)
    • Le Trient Valley
Frederic Hede
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