Goethite

Description

Goethite is a common mineral, and is a frequent matrix material for other more aesthetic minerals. It is usually a dark coloured mineral, with some specimens featuring delicate and beautiful crystal growths and velvety botryoidal growths. Goethite is frequent as black crystal sprays that form within geodes on drusy Quartz. It commonly forms a pseudomorph after other minerals, especially Marcasite, Pyrite, Siderite, and Gypsum. Produced by CQUniversity. You can [find out more about Goethite](https://www.mindat.org/min-1719.html) on Mindat.