A Geoscience Digital Image Library

TitleSilver plume aplite
DescriptionThis is a plain-polarized view of aplite, which is a fine-grained pink granitic rock composed of quartz, glassy feldspar (microcline and sodic plagioclase) and biotite. The quartz and glassy feldspar is in the white areas.
Geologic provinceSilver Plume aplite
LocationUSA ▹ Colorado ▹ Boulder. Near Boulder.
PhotographerDarla Sondrol. 2001-10-25.
CollectionWard’s Collection of Classic North American Rocks #5.
Key wordsaplite, granite, Colorado
Tech details1.66 MB. Thin section. Nikon FDX-35.
GeoDIL number1699