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🗓️ 25 September 2023
⏱️ 13 minutes
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0:00.0 | Under your feet all around you are rocks and minerals. |
0:03.5 | Many times in your life you probably picked up a rock and looked at it. |
0:06.7 | You may have climbed over rocks and mountains and never given a single thought as to what they consist of or what they even are. |
0:13.0 | Rocks and minerals don't just make up our planet, |
0:15.0 | but many objects in the universe as well. |
0:17.4 | But what are rocks and minerals? |
0:19.8 | And what exactly are the differences between them? Learn more about rocks and minerals and exactly what they are, |
0:25.0 | on this episode of Everything Everywhere Daily. I might as well start out with the obvious question a question that many of you may have never bothered to ask at any point in your life |
0:49.6 | What is a rock? We all know a rock when we see one, but what exactly is it? A rock is nothing more than an aggregation or an amalgamation of minerals. |
1:02.0 | Well, okay, that then brings up the next question. |
1:05.0 | What is a mineral? |
1:07.0 | The standard definition of a mineral is that it is a naturally occurring solid that has a well defined chemical composition and |
1:14.6 | crystal structure. So for example, glass is solid but it's amorphous. It has no |
1:20.9 | crystal structure so glass is not a mineral. |
1:24.0 | Liquid water has a definite chemical structure, but it's not a solid, so it is not a mineral. |
1:29.0 | However, ice is a solid, and it does have a crystalline structure. And ice is a solid and it does have a crystalline structure and ice is technically a |
1:35.8 | mineral. Actually ice isn't just a mineral it's 20 different minerals. |
1:40.4 | At extreme pressures and temperatures conditions under which we would never experience, |
1:45.3 | ice can have different crystalline structures making them different minerals. There are thousands of |
1:51.3 | different minerals, each with its own chemical composition and |
1:54.4 | crystalline structure. |
1:56.3 | Depending on the source, there are somewhere between 5,63 and about 7,000 known minerals. |
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