Goethite from Wulashan mining district, Baotou City, Inner Mongolia, China

From Wulashan Au deposit, Wulashan mining district, Binhe New District, Baotou City (Baotou Prefecture), Inner Mongolia, China.

Beautiful specimen of botryoidal goethite with colorful iridescent surfaces grading from yellow, to green to purple.

Weight: 475.9 grams, Dimensions: 5 x 1 x 4 inches