Minerals
 |
| Minerals are NOT rocks |
To meet the definition of "mineral" used by most geologists, a substance must meet five requirements:
- naturally occurring
- inorganic
- solid
- definite chemical composition
- ordered internal structure
"Naturally occurring" means that people did not make it. Steel is not a mineral because it is an alloy produced by people. "Inorganic" means that the substance is not made by an organism. Wood and pearls are made by organisms and thus are not minerals. "Solid" means that it is not a liquid or a gas at standard temperature and pressure.
ASSIGNMENT:
1. Watch each of the following videos. Write a summary of each of them, being sure to discuss the primary topic of each one. Include and highlight the most important vocabulary in the video.
Back to top of page
No comments:
Post a Comment