Agate Decorative Heart. This Agate was mined from the Norcross Madagascar (NMG) Agate quarry. You will receive your piece(s) of Agate Heart carving(s), approximate weight: 90g, similar to what is photographed, with this order. Further discounts apply for quantity purchasing. It's better to buy your Agate Heart from your direct source of Agate. For more information, please call a Madagascar Minerals® sales representative (520) 882-8884.