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Today's field trip

From: Grant K.
Sent on: Saturday, May 17, 2014 7:50 PM

I had a great time today running around like a young kid digging for rocks.  All of you made it special.  Now, I am reading something that seems to answer a question I have had for a long time and maybe you folks have the same question.  It seemed like every other rock anybody asked about was feldspar.  I am reading that feldspar crystals make up over 60% of all the rocks on the crust of the planet.  Then all the rest of the rocks and minerals make up the rest.  So it would make sense that just about everything is feldspar.  Maryland seems to have a bit more than average however. 

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