A Geoscience Digital Image Library

TitleEpidosite from Texas Creek, Colorado, USA
DescriptionThis sample of the Idaho Springs Formation is nearly entirely epidote, Ca2(Al,Fe)3(SiO4)3(OH). The minor white material is plagioclase. Most of the epidote was probably plagioclase before it was altered by flowing groundwaters.
LocationUSA ▹ Colorado. Near Texas Creek. Texas Creek.
PhotographerMike Davis. 2001-04-24.
CollectionWard’s Collection of Classic North American Rocks #98.
Key wordsepidosite, epidote, Colorado
Tech details856 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera, 60mm Nikon AF micro lens.
GeoDIL number370