This celestite on sulfur is from the Machow Mine in Tarnobrzeg, Podkarpackite, Poland. This mine contains 6 mineral species including the element sulfur which is found in a vug filled layer of limestone. This specimen consists of a white, crystalline, celestite (celestine) matrix that is topped with a trio of mineral species. There are lightly etched rhombic, scalenohedral, and complex sulfur crystals mixed and topped with glassy celestite crystals. Some of the celestite crystals form vertical plate like formations. There are also rhombic calcite crystals on the left side of the piece as shown in photo 3. The piece is heavy and measures 4 x 2 3/4 x 1 3/4 inches or 102 x 70 x 45 mm.