Erosion of Rocks – Running water can do some major damage.
It's amazing when you see it first hand.
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Gemstones – People always wondering with some gems are worth
so much. Me too!
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Igneous Rock – Igneous rock forms in a similar manner from
hot molten magma that exists within the earth's mantle.
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Metamorphic Rock – The deeper the igneous and sedimentary
rock is the earth's crust, the higher the temperature and pressure
become.
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Mining – Mining is the process of extracting minerals from
the earth's surface where they once formed billions of years ago.
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What are Minerals? – The element that occurs in the largest
amount in the earth's crust is oxygen which accounts for nearly half
the weight of the crust.
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Minerals and Nutrition – Vitamins and minerals are substances
in the food we eat that the human body needs in order to function
properly.
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Sedimentary Rock – Limestone is a type of sedimentary rock
that is made of the mineral calcite.
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Types of Rocks – All rocks are composed of minerals which
are natural inorganic (non-living) substances.
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Weathering of Rocks – Most of the rock found on the earth's
surface initially formed underground, deep within the earth.
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