Henmilite on Calcite

The most interesting and certainly the most substantial specimen of the batch. The white Calcite matrix exhibits both Mammilliary and stalactitic form with elongate structures to 2cm length. The coverage of deep blue Henmilite crystals (to 3mm) is excellent, sprinkled over and partially intergrown with the Calcite. An attractive hollow 'tower' of Calcite at one end has crystals on the inside and outside. Fascinating detail on this specimen.