Assignment: Sedimentary Rocks Presentation
|
Rock Name |
Contains |
Where It’s Found and How It Formed |
Special Features |
Picture (website link) |
|
Chert |
Fine quartz crystals and remains of ancient sea sponges and ocean animals |
Extremely rare, found near water |
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|
Sandstone |
Quartz particles and sand grains |
As layers in areas such as the Grand Canyon |
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|
Mudstone |
Clay minerals, quartz, mica |
Deep in the ocean or the bottom of a lake |
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|
Geode |
Rock, minerals calcite, and quartz |
Can form in any buried opening, including bubbles in igneous rocks, under tree roots, or even in animal burrows |
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|
(your choice) |
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