Good size specimen formed by numerous botryoidal aggregates of blue chrysocolla, scattered across a matrix primarily made of quartz. Underneath some of these bluish spheres, green radial aggregates corresponding to malachite. Tenorite is present as black globular aggregates. The contrast against the matrix is highly striking.
Although similar pieces initially circulated with erroneous labels attributing them to the Tentadora Mine (Pisco, Ica), the locality was subsequently corrected and confirmed by R. Lavinstky and U. Kolitsch as originating from the Julcani mining district (Huancavelica).