Barite Orpiment and Realgar: Quiruvilca Mine, La Libertad, Peru. Personal Collection.
This specimen has large thick tabular crystals of translucent barite over the top of an orange botryoidal crystallized orpiment matrix. Many needle like red crystals of realgar are present too. I have to store this specimen in the dark because UV rays break down the Realgar into powdered arsenic! Must handle with caution!