These roselite crystals are from Aghbar, Tazenakht, Ouarzazate Region, Draa-Tifilalet Region, Morocco. This locale has two active mines that contain 53 mineral species including roselite. It is an arsenate that contains the elements Ca, Co, As, O and H. This specimen consists of a calcite matrix that is covered with a carpet of calcite crystals and gemmy roselite crystals. The roselite is rose to magenta in color. The central calcite has a roselite crystal included and suspended in it. The piece measures 1 3/8 x 1 1/8 x 3/4 inches or 35 x 28 x 19 mm.