Labradorite Plaque - Large, mined from the Norcross-Madagascar (NMG) labradorite quarry. You will receive this Labradorite Plaque - Large (8.23kg - 18.10lb) with this order. High-Flash! It's better to buy your Labradorite Plaque from Madagascar Minerals, your direct source of Labradorite. Labradorite is a stone of transformation and change. See below the metaphysical guide of Labradorite. For more information, please call a Madagascar Minerals sales® representative (520) 882-8884.