Thursday, October 31, 2019

Info on Minerals plus Videos

Class, here are some videos on Minerals and their formation:



Remember, minerals have a crystal structure inside. This means the atoms are arranged in a perfect, repeating pattern over and over.
Here's are pictures of crystal structures for 2 minerals, both of which are made up of Carbon but the atoms are arranged differently:


Also, a mineral's fixed chemical formula might also be stated as having a definite chemical composition. They both mean the same thing, that the elements that make up that mineral are always found in the same ratio throughout the mineral. So for example, in the mineral Fluorite, which has a chemical formula of CaF2, there is always 1 Calcium atom attached to 2 Fluorine atoms, throughout the whole mineral. See the picture below:










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