Pentĕlĭcus — Lewis & Short
Pentĕlĭcus, a, um, adj., = *penteliko/s,
I of or belonging to a mountain near Athens (in the demos of *pentelh/), celebrated for its while marble, Pentelie:
Hermae Pentelici,of Pentelic marble, Cic. Att. 1, 8, 2.