perlitic

/pərˈlɪtɪk/
adjective
  1. Relating to or resembling perlite, especially having a glassy, layered texture.
    • The geologist identified the sample as perlitic due to its characteristic appearance.
    • The rock had a perlitic texture, with small, rounded cracks from cooling.
    • Perlitic structures are common in certain types of volcanic glass.
Synonyms