ex. Dr. Werner Paar Collection Chalcostibite on tetrahedite, associated with (?) zinkenite, quartz and sharp disc-shaped calcite, featuring beautifully lustrous crystals of crystals of Chalcostibite up to 5 mm; and arranged in clusters upon tetrahedite. The Romanian suite is of particular pride in this collection and he had several notable chalcostibite specimens, all from a famous and small find of about 1990. Never has the same quality come out before or since, here.