(thing) by bis Sun Aug 13 2000 at 5:07:49

A clastic sedimentary rock composed of quartz and feldspar fragments, usually from granite or gneiss. If you want to see a really big hunk of it in person, travel to Australia and visit Ayers Rock.

I am not a geology expert, please correct me if you are, and my pathetic explanation has offended you.

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(definition) by Webster 1913 Sun Mar 13 2005 at 8:16:42

Ar*kose" (?), n. [F] (Petrog.)

A sandstone derived from the disintegration of granite or gneiss, and characterized by feldspar fragments. -- Ar*kos"ic (#), a.

 

© Webster 1913.

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