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New page: thumb|300px'''Potassium feldspar''' is a member of the feldspar mineral family. Like Flagioclase Feldspar, potassium feldspars are silicate...
[[Image:Potassium_feldspar.jpg|thumb|300px]]'''Potassium feldspar''' is a member of the [[feldspar]] [[mineral]] family. Like [[Flagioclase Feldspar]], potassium feldspars are [[silicate]] [[minerals]] that contain a considerable amount of [[potassium]]. Feldspar crystals are stubby prisms, often [[pink]] to [[white]]. Some potassium feldspars, such as the one shown to the left have a streaky appearance (see closeup) called perthitic texture.<ref>http://wrgis.wr.usgs.gov/docs/parks/rxmin/mineral.html#amphibole</ref>
==References==
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[[Category:Geology]]
==References==
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[[Category:Geology]]