amethyst

As nouns the difference between amethyst and peridot

is that amethyst is a transparent purple variety of quartz, used as a gemstone while peridot is a transparent olive-green form of olivine, used as a gem.

As an adjective amethyst

is having a colour similar to that of the gemstone.

Lavenderquartz is likely misspelled.

Lavenderquartz has no English definition.

As a noun amethyst is

a transparent purple variety of quartz, used as a gemstone.

As an adjective amethyst is

having a colour similar to that of the gemstone.

As a noun amethyst

is amethyst.

As a proper noun jasper is

, an english variant of caspar.