Description
The mineral coquimbite is a hydrated iron sulfate with the chemical formula Fe2(SO4)3 9 H2O. It has a trigonal-hexagonal crystal lattice and is bluish, purplish, greenish, or yellowish-white in color and transparent. Its hardness is 2.0 to 2.1. Coquimbite is named after the Chilean region of Coquimbo, where the type locality is also located.





