Definitions of Felstone

  1. See Felsite. Webster Dictionary DB
  2. Rock of quartz and feldspar. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.
  3. In geol., a name to designate compact felspar which occurs in amorphous rock-masses. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
  4. Compact felspar occurring in amorphous rock masses. [German] Concise Oxford Dictionary
  5. A rock composed wholly or largely of felspar. Glossary of terms and phrases - Percy