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Volcanic glass



Volcanic glass can refer to any of several types of vitreous igneous rocks. Most commonly, it refers to:

Additional recommended knowledge

Other types of volcanic glass include:

  • Pumice, which is considered a glass because it has no crystal structure.
  • Tachylite (also spelled tachylyte), a basaltic glass with relatively low silica content.
  • Sideromelane, a less common form tachylyte.
  • Palagonite, a basaltic glass with relatively low silica content.
  • Hyaloclastite, a hydrated tuff-like breccia of sideromelane and palagonite.
  • Pele's hair, threads or fibers of volcanic glass, usually basaltic.
  • Pele's tears, tear-like drops of volcanic glass, usually basaltic.
  • Limu o Pele (Pele's seaweed), thin sheets and flakes of brownish-green to near-clear volcanic glass, usually basaltic.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Volcanic_glass". A list of authors is available in Wikipedia.
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