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{Rocks} difference between sandstone and slate?

  1. Feb 10, 2015 #1
    1. The problem statement, all variables and given/known data
    sandstone is a sedimentary rocks while slate is a metamorphic rock come from mud stone with a high temperature and pressure, they are both stratified rocks, while chemically slates compose of Argil i.e Clay, while silica is the main ingredients of sandstone,
    my question is : how can we make the difference by just look ?
     
  2. jcsd
  3. Feb 10, 2015 #2

    SteamKing

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    What's one of the key characteristics of sedimentary rocks? How are these types of rock formed?
     
  4. Feb 10, 2015 #3
    sedimentary rocks formed due to weathering action of water, wind and frost on existing rocks generally uniform, fine grained and compact
     
  5. Feb 10, 2015 #4

    SteamKing

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    And how do these bits of existing rock collect before being turned into a sedimentary rock? What is the chief feature of their appearance?

    Hint: It's OK to look at pictures of rocks on the internet. ;)
     
  6. Feb 10, 2015 #5
    by look by touch
    it's hard difficult to notice the difference in pictures u can try that
     
  7. Feb 11, 2015 #6

    Borek

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