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You are browsing the archive for 29 March 2010 - Mountain Beltway.

29 March 2010

New metaconglomerate sample

Courtesy of my scanner, and my generous student Saadet M., whose family runs a building stone business here in northern Virginia… behold a lovely metaconglomerate: This is a really cool rock. I would rather have this than diabase for my countertop. It doesn’t show up well in this scan, but the rock has a moderately well developed foliation in the matrix: I’d describe it as “phyllitic verging on schisty.” The …

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