Large cabinet specimen of spiky white crystal clusters of the rare zinc arsenate austinite interspersed with clear chisel shaped adamite crystals on limonite matrix from the Gold Hill Mine in Toole County, Utah. Collected from the Glory Hole area of the mine in 1994 by David Shannon. The adamite fluoresces a light yellow green. This mine is the type locality for austinite. Especially nice under magnification. Excellent condition. Measures 6 x 6 x 2.5 inches (15.2 x 15.2 x 6.4 cm).