Is lapis lazuli foliated

No, lapis lazuli is not foliated. It is a metamorphic rock primarily composed of lazurite, along with other minerals like calcite and pyrite. Unlike foliated rocks, which have a layered or banded appearance due to the alignment of minerals, lapis lazuli typically exhibits a uniform blue color with specks of gold and white. Its structure is more massive and does not show the distinct layering characteristic of foliated rocks.