Rocks & Minerals
| Rocks are one or more minerals. Some rocks such as quartzite contain only one mineral. Minerals are inorganic they are made of - granite & basalt -. Major minerals which they are formed. Forming minerals can be described. The nine known planets that revolve around the earth is thought to be about 4.6 billion years old. Rocks can provide information about the earth geologists study them and work out the processes that produced them. As we currently bore only a few miles into the crust or outer shell we can`t sample rocks from the mantle. The rocks and minerals come from many locations & important features that are explained. |
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