An old specimen with good sized crystals of sturmanite, some doubly terminated coated by charlesite. The host matrix has fine micro crystals of manganite. The largest crystal measures 20mm. A couple of minor abrasions, over all in great condition.
Size(cm): 5 x 4.2 x 2.4cm. This item is made of prismatic manganvesuvianite and kmf, kalahari manganese field, samineralshop.