Goethite stalactites. Goethite is an important iron ore and is a form of iron hydroxide (alpha-FeOOH). It can occur as prismatic crystals or,more usually,in tabular or stalactitic aggregates. Here is it seen in a pinnacle shaped stalactite habitat. It is an important constituent of 'limonite',rocks formed under oxidising conditions at the expense of iron- bearing minerals | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 4710 px × 3711 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |