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Summary
Plagioclase feldspar
Plagioclase is a member of the feldspar mineral family. Plagioclase feldspars are yet another silicate that contains considerable sodium or calcium. Feldspar crystals are stubby prisms, generally white to gray and a glassy luster. This variety of plagioclase, called albite, is rich in sodium.
Copyright status
This image is public domain because it was first published by the U.S. National Park Service.
Source
http://www2.nature.nps.gov/GEOLOGY/usgsnps/rxmin/albite260x260.jpg
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment |
current | 19:20, 8 June 2007 |  | 260 × 260 (18 KB) | Jake | www2.nature.nps.gov |
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