A Geoscience Digital Image Library

TitleThin section of ijolite
DescriptionThis is the plain polarized thin section of ijolite. The major minerals are pyroxene (aegirine), biotite and nepheline. Minor orthoclase, titanite (sphene) and apatite are also present.
ChronostratigraphyLate Precambrian
LocationUSA ▹ Colorado. McClure Mountains.
PhotographerDarla Sondrol. 2001-11-01.
CollectionWard’s Collection of Classic North American Rocks #19.
Key wordsijolite, Precambrian, Colorado
Tech details1.68 MB. Thin section. Nikon FDX-35.
GeoDIL number1727