| MadSci Network: Earth Sciences |
Hello! We are a class of fourth graders who have been studying rocks and minerals for some time. We have a few questions. They are: Is the crust the continents or below sea level? Also, how far below the surface is it? What rocks have quartz in it? Also, what tests can a collector do to determine if you have quartz? What do you know about weathering and erosion? What makes rocks and minerals fluoresce? What is the most common Igneous rock?
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