arenite
noun
ar·e·nite
ˈarəˌnīt,
əˈrēˌ-
plural -s
: medium-grained detrital rock (as sandstone, graywacke, arkose, and orthoquartzite)
arenitic adjective
¦arə¦nitik
Word History
Etymology
Latin arena, harena sand + English -ite