"This is a Siderite var. Chalybite from Great Onslow Consols, St. Breward, Cornwall, England, UK. Totally covering one side of its matrix is a fine cluster of lustrous and translucent, brown-yellow siderite crystals to 7 mm in length, with many of them exhibiting complete growth in multiple directions, clearly showing off their trigonal symmetry. Click here for more info on The Arkenstone."

No-one has added this to their favourites.