Finnish labradorite is also known as spectrolite . A lapidary is someone who cuts and polishes gemstones. Ground-up lapis lazuli was once used as a pigment for oil paintings. Lapis lazuli is often dyed to deepen and improve its color. Water can dull its sheen.
Lapis lazuli contains the minerals calcite, pyrite , and sodalite .
It is an opaque sky blue stone with white streaks. There are often some red to brown impurities. Larimar has a hardness of 4.5 - 6.0 and a specific gravity of 2.7 to 2.9. Larimar is not enhanced. A lathe is a machine that turns metal, wood, etc.