All of our Minerals & Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity Specimen: Agate, Dulcote Type: Mineral/Crystal Location: UK Scale cube=1cm: Full sizing please see photo The famous Dulcote Agate from Somerset, UK is an exquisite and complex type of nodule known among the agates as England’s Glory, the Mendip Magic-Stone or, Mendip Potatoes! When cut through some of the nodules can show a quartz lining with goethite needles and other minerals, including amethyst and calcite.