The deposits of amethyst lace agate History gemstones are found throughout the African subcontinent, including Zambia, Madagascar, and Tanzania. Talking about the South American country Uruguay, this nation produces high-quality specimens of amethyst lace agate stone that are well in demand. Brazil too, supplies the world with good quality amethyst lace agate. Other smaller and less significant mines of amethyst lace agate are situated in Russia, Mexico, India, and the United States.
