A Geoscience Digital Image Library

DescriptionIlmenite, FeTiO3 (iron titanium oxide), is an economically important and interesting mineral. Ilmenite forms as a primary mineral in mafic igneous rocks and is concentrated into layers by a process called “magmatic segregation”. It crystallizes out of a magma relatively early before most of the other minerals. As a result, the heavier crystals of ilmenite fall to the bottom of the magma chamber and collect in layers.
PhotographerDarla Sondrol. 2001-07-31.
CollectionUniversity of North Dakota Mineralogy Collection #3189.
Key wordsilmenite
Tech details680 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1402