Labradorite Large Sphere 18.25kg. This Labradorite was mined from the Norcross-Madagascar Labradorite quarry, located in the south of Madagascar. Labradorite found in Madagascar is one of the best Labradorite on the world. It's better to buy your Labradorite from Madagascar Minerals®, your direct source of Labradorite. Labradorite is a stone of transformation and change. See below the metaphysical guide of Labradorite.