Monday, March 14, 2011

Notes Reflection

In class we were assigned to take notes on rocks and minerals. We had to say how they form, what types of rocks are there (igneous, metamorphic, and sedimentary), the most precious mineral, three rock or minerals and give some interesting facts about them, and so on. What I think that the most interesting thing that I learned was about the mineral and most precious metal, rhodium. I learned that it costs about $10,000 per ounce! that is less than a pound! Also it goes from 5-25 times more expensive and costly than gold! Rhodium is very shiny and they use it on diamonds to make them look bigger, it has this effect because it is very shiny and that makes it hard to see where the diamond ends and the metal begins. Also it was discovered by William Hyde Wollaston in 1803. I also found out about how to identify a mineral, it has to be solid, naturally occurring, inorganic, and has to have a crystalline structure. I also learned that igneous rocks and hardened lava and that sedimentary rocks form from weathering and the remains of other rocks. Also metamorphic rock is altered under heat and pressure and there is more heat and pressure the closer you get to the core and that is usually where they form. Also diamonds form under ground because they need heat and pressure to form and that is why they cost so much, is because they have to dig deep to find them. The most precious mineral is carbon in diamond form. Diamonds also conduct heat really well! Also diamonds, they have the highest melting point it is 3550 degrease Celsius! I took many more notes, these are just some

-Mrs. M if your reading this I just want to let you know that when doing this I left my notebook at school , this is all based on what I remember!!!

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