A Tour of Colorado Gemstone Localities

  title={A Tour of Colorado Gemstone Localities},
  author={Jack A. Murphy and Peter J. Modreski},
  journal={Rocks \& Minerals},
  pages={218 - 238}
oin us for a gemstone tour around Colorado! Our field trip J takes us from east to west in the same way you may have toured through Colorado on a mineral collecting trip. This route, from the plains to the mountains, allows us to examine geological settings in proximity to one another and compare different types and ages of rocks where gemstones are known to occur. We cannot discuss every Colorado gemstone occurrence; rather, this is a general review of classic localities with some key… 
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