Blanchard (Red)

In the Idaho Panhandle there are innumerable exposures of dissimilar rocks in glaring juxtaposition.  Geologists tell us this was once North America's western beachfront.  But multiple errant land masses, carried by plate tectonics, crashed into Idaho, and then more pressed against them, filling in the entire states of Oregon and Washington.  

Near the town of Blanchard, a vein of this red-brown rock stands out on a hillside.  While I'm fascinated by polarized light microscopy, I have not yet had the geologic training to say with certainty what these crystals are.  But they dance so gracefully to the drum of polarized light!

Blanchard (Red)

  • Your thin section of Blanchard Red includes numerous, large-scale  birefringent crystals, and is most enjoyable with the ~15X lens.

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