Definición de hornfels en inglés:

hornfels

Silabificación: horn·fels
Pronunciación: /ˈhôrnˌfelz
 
/

sustantivo

  • A dark, fine-grained metamorphic rock consisting largely of quartz, mica, and particular feldspars.
    Más ejemplos en oraciones
    • The slate, where thermally metamorphosed, has been turned into siliceous hornfels and mica schist.
    • As a result, contact metamorphic minerals grow in random interlocking patterns giving rise to hornfels, a tough rock with no direction along which it will split preferentially.
    • These are actually pseudomorphs of sericite (a fine-grained white mica) after cordierite and are found included in hornfels or slate as a product of contact metamorphism.

Origen

mid 19th century: from German, literally 'horn rock'.

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Palabra del día coloratura
Pronunciación: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody