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Dynamic Earth Lab
| Question | Answer |
|---|---|
| What hardness number is a penny? | 3.5 |
| What hardness number is a fingernail? | 2.5 |
| What hardness number is glass? | 5.5 |
| What are vesicles? | Lightweight with holes |
| What colors can obsidian be? | Black, orange, or green |
| What does mafic mean? | dark |
| What does felsic mean? | light |
| What is the only organic rock? | Coal |
| What does oolitic limestone have physically? | Goosebumps |
| Fragmentals including tuff and breccia will not be on the quiz | I repeat, not on the quiz, even in the glassy section of the igneous rock key |
| <5% visible grains means? | Fine grains |
| What do fine grains mean? | You can't see crystals |
| All visible grains means? | Coarse grains |
| What do coarse grains mean? | You can see crystals |
| What does porphyritic mean? | A blend of coarse and fine grains are visible Crystal will peak through smooth fine grains |
| What two rocks can be porphyritic (but are not always)? | Rhyolite and Basalt |
| Which rock is always porphyritic? | Andesite |
| Which rock has pink grains? | Rhyolite |
| Which rock has black grains? | Andesite |
| Which rock has green grains? | Basalt |
| Gabbro rocks are typically 100% black, what other colors can they have? | Pink or Red |
| Granite is what color? | Light Mostly white with black spots still mafic |
| Diorite is what color? | Dark Mostly black spots with some white peaking through still mafic |
| Where are mafic rocks formed? | Mantle |
| Where are felsic rocks formed? | Crust |
| Rock salt is? | Super crystaly |
| Gypsum is? | Slightly crystaly Pure white |
| Abundant grains will look similar to? | Gravel |
| Sandstone will look and feel like? | Sand Sandpaper |
| Mudstone and Shale should not be on this test, but in case, what is the difference between the two? | Mudstone can scratch glass, shale can't Shale is thinly layered, easily spread into sheets |
| What does chert look like and what can it do? | Like shale, but more like toffee Can scratch glass |
| What does foliated mean? | Layered |
| Gneiss has? | Stripes White-dark Similar to granite |
| Non-foliated means? | No layers, not banded |
| Schist is? | Never sparkly, but looks metallic/shiny Hard to see layers |
| Schist can look like? | Garnets (red) |
| Slate looks like? | Shale, but with more layers and less dull |
| Phyllites can have? | Ridges, scales |
| Phyllites look? | Waxy/silky Shine |
| Quartzite can? | Scratch glass |
| Can marble scratch glass? | No, it is too weak |
| Amphibolites look? | Black, sparkly Rectangular, coarse grains |
| What are low metamorphic grade rocks? | Marble, quartzite, slate, and green stone |
Created by:
user-1965680