Relating to or made of granolith; describing a surface or material made from stone granules bound with cement.
From 'granolith' + '-ic' (adjective suffix). Developed in the late 1800s/early 1900s alongside the material itself to describe surfaces and construction methods using granolithic materials.
Granolithic finishes were beloved by Victorian and Edwardian architects because they looked expensive and permanent while being relatively affordable—the word shows up constantly in building specifications from 1890-1930, then fades as new materials took over.
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