4th Grade: This week, we examined some new minerals and discussed the properties of magnetism, luster, cleavage, and streak color. We filled out a mineral property table and compared it to a table of known mineral properties.
Key Questions:
- What knew properties did you learn about? (Magnetism. Luster = metallic or nonmetallic. Cleavage = mineral breaks apart with flat surfaces. Streak color - color of the streak of mineral pieces when a mineral is rubbed against a tile). Why did you study this? (It helps us understand how geologists identify a mineral and also helps with our table-reading skills.) FYI, the new minerals were hematite, pyrite or Fool's Gold, galena and magnetite.
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