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  • Phonolite - Wikipedia
    Phonolite is an uncommon shallow intrusive or extrusive rock, of intermediate chemical composition between felsic and mafic, with texture ranging from aphanitic (fine-grained) to porphyritic (mixed fine- and coarse-grained)
  • Phonolite | Volcanic, Igneous, Intrusive | Britannica
    Phonolite, any member of a group of extrusive igneous rocks (lavas) that are rich in nepheline and potash feldspar The typical phonolite is a fine-grained, compact igneous rock that splits into thin, tough plates which make a ringing sound when struck by a hammer, hence the rock’s name
  • Phonolite: Mineral information, data and localities. - mindat. org
    11 photos of Phonolite associated with Aegirine: NaFe 3+ Si 2 O 6: 8 photos of Phonolite associated with Tuperssuatsiaite: Fe 3+ Fe 3+ 2 (Na ) 2 Si 8 O 20 (OH) 2 (H 2 O) 4 · 2H 2 O: 5 photos of Phonolite associated with Nepheline: Na 3 K(Al 4 Si 4 O 16) 5 photos of Phonolite associated with Melanite: Ca 3 Fe 3+ 2 (SiO 4) 3: 5 photos of
  • How the Tower Formed - U. S. National Park Service
    We know that the Tower is formed of a rare igneous rock, phonolite porphyry, and is the largest example of columnar jointing in the world To better understand processes which shaped the Tower, we look back through Earth's history to a time long before this unique feature took shape
  • Phonolite - SpringerLink
    With increasing plagioclase, phonolites grade (through tephritic phonolite and phonolitic tephrite) into tephrites and basanites (when olivine-bearing) Clinkstone, echodolite, and klingstein are archaic synonyms of phonolite
  • Phonolite - an overview | ScienceDirect Topics
    Phonolite is a subvolcanic rock variety characterized by the presence of variable amounts of pyroxene and phenocrysts of sanidine, nepheline, diopside, nosean, kaersutite, and titanite, embedded in a groundmass of mainly nepheline and sanidine microlites
  • PHONOLITE 響岩文化
    PHONOLITE provides secure and delicate contents with an artistic exterior, which we look forward to accompanying users, as a “Phonolite”, to create more sparks together
  • Wyomings Exotic and Enigmatic Phonolite - Blogger
    Phonolite is an uncommon rock— “exotic and enigmatic ” Yet I encountered it again just recently, in the Rattlesnake Hills of central Wyoming only 175 miles southwest of Devils Tower In both places the phonolite is estimated to be about 40 million years old, emplaced during the Eocene Epoch
  • Phonolite : Properties, Occurrence, Compositions - Geology Science
    Phonolite is a type of volcanic rock that belongs to the family of igneous rocks It is characterized by its unique mineral composition and texture, which set it apart from other volcanic rocks The name "phonolite" is derived from the Greek words "phōnē," meaning sound, and "lithos," meaning stone, highlighting one of its distinctive features
  • Phonolite Rock | History | Origin - Compare Nature
    Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic Phonolite is available in brown, buff, cream, green, grey, pink, white colors





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