Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
Lapidary style is prose that is appropriate for memorials, mausoleums, stelae, and other commemorations in which words are "etched in stone"; it is concise, pithy, elegant, and sententious. The meaning extends to text in that style which is printed on paper rather than carved into monuments.