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Glite Dictionary
biotitic

biotitic

9.9
A rock that contains a lot of dark, shiny mineral called biotite
  • adjective
  • /ˌbaɪəˈtɪtɪk/
  • Specialized
: biotítico
  • The granite in this region is distinctly biotitic, containing large amounts of dark mica.

Examples

  • A biotitic layer within the rock sample indicated the presence of biotite during formation.

  • The geologist described the outcrop as a biotitic gneiss due to its mineral content.

  • The biotitic composition of the rock was analyzed.

  • Many biotitic minerals are often found in granite.

  • The geologist described the outcrop as a biotitic gneiss due to its mineral content.

  • A biotitic layer within the rock sample indicated the presence of biotite during formation.

  • The granite in this region is distinctly biotitic, containing large amounts of dark mica.

Surface Forms

biotitic positive

Morphology

biotitic = biotite (transparent) = biotite + ic

Formed from the mineral name 'biotite' plus the adjectival suffix '-ic', meaning 'relating to or containing biotite', which is a direct and standard derivation.

Etymology

Biotitic comes from the mineral name biotite, which was named for the scientist Jean-Baptiste Biot, and the ending -ite is a common mineral name ending like in graphite. So a biotitic rock is one that 'contains biotite' or 'relates to biotite'.