A Geoscience Digital Image Library

TitleCordierite-anthophyllite skarn, Betty Mine, Guffey, Park County, Colorado
DescriptionThis sample from the Idaho Springs Formation contains coarse blades/prisms of tan anthopyllite. The finer material is mostly muscovite, biotite and quartz, but also includes subtle glassy to subvitreous blue and gray cordierite. The sample is 9 cm across.
LithostratigraphyIdaho Springs Formation
LocationUSA ▹ Colorado ▹ Park. Near Guffey. Betty Mine.
PhotographerNessa Eull. 2001-04-10.
CollectionWard’s Collection of Classic North American Rocks #88.
Key wordscordierite, anthophylite, skarn, Colorado
Tech details1.29 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number337