Lapis lazuli - Wikipedia
https://en.m.wikipedia.org/wiki/Lapis_lazuli
Lapis is the Latin word for "stone" and lazulī is the genitive form of the Medieval Latin lazulum, which is taken from the Arabic لازورد lāzurd, itself from the Persian لاجورد lājevard. It means "sky" or "heaven"; so this is a "stone (of/from) the sky" or "stone (of/from) heaven".[10][11] For example, in the following Persian poem by Ferdowsi:

چو خورشید بر گنبد لاژورد

سراپرده‌ای زد ز دیبای زرد

As the sun struck the dome of lazuli,

A golden curtain was drawn, most truly.

Historically, it was mined in the Badakhshan region of upper Afghanistan. Lazulum is etymologically related to the color blue, and used as a root for the word for blue in several languages, including Spanish and Portuguese azul.[11][10]