A superb cluster of gemmy and lustrous, doubly-terminated purple hydroxyl-herderite crystals from THE classic locality for such specimens. This find, dating to October of 1976, is recounted in interesting detail in the excellent book by Dr. Peter Bancroft Gem and Crystal Treasures on pages 207-208. These remain, years later, the best ever found of purple herderite, and the only Virgem de Lapa occurence as well. This choice display-quality miniature features an extraordinarily well-developed 2.5 cm crystal in its center. 4.2 x 3.7 x 2.7 cm