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Ch 4/5 Minerals/Rock
Study for the Ch. 4 and 5 Test over Minerals and Rocks
| Question | Answer |
|---|---|
| Name the 5 characteristics all minerals have. | Solid, crystals, naturally occuring, chemical composition, inorganic. |
| True or False: A tree is inorganic | False, a tree is living, therefore it is NOT inorganic. |
| Salt has this crystal shape: | Cube |
| Naturally occuring means: | Not man-made, can be found out in nature. |
| Is NaCl an element or a compound? | It is the chemical compound for salt. There are two elements combined so it is a compound. |
| Is Au (gold) an element or a compound? | Gold is an element. |
| How many elements are in CaCO3 | Three-Ca, C, and O |
| What is the chemical composition for the mineral Halite? | Halite is salt. It is NaCl |
| Name a test you can do to identify a mineral. | Mohs hardness, scratch, streak plate, vinegar/acid drops. |
| A mineral with a very low harndess would have the number: | 1 |
| A mineral with the highest hardness would have the number: | 10 |
| Name a mineral with a hardness of 1 | Talc |
| Name a mineral with a hardness of 10 | Diamond |
| The way a mineral breaks can be classified as ___________ or ___________. | Cleavage or fracture. |
| A mineral that breaks along straight lines has ___________. | Cleavage. |
| The look and feel of a rocks is called its | Texture |
| Small particles that make up other rocks are called | Grains |
| If something has very small grains it has a _____________ texture. | Fine grained |
| The "recipe" for making a sedimentary rock in order is: | Erosion, Deposition, Compaction, Cementation (remember EDCC) |
| These rocks form under heat and pressure | Metamorphic |
| These rocks form from cooling magma | Igneous |
| These rocks form from EDCC :) | Sedimentary |
| What are the three ways you can identify a rock? | Mineral composition, origin, and texture. |
| What type of rock is granite? | Igneous |
| What type of rock is slate? | Metamorphic |
| What type of rock is conglomerate? | Sedimentary |
| Igneous rocks can be these two types, depending on where the magma cools. | Extrusive or intrusive |
| Igneous rocks can have crystals that are both big and small all in the same rock. This texture is called | Porphyritic |
| Obsidian cools very quickly and has this texture. | Glassy |
| Sedimentary rocks made up of pieces of other rocks are called | Clastic |
| Limestone and coal are sedimentary rocks made of living things and are called | Organic sedimentary rocks |
| Rock salt is made when sea water evaporates and layers of rock form. This is a type of sedimentary rock called | Chemical |
| Coral reef can become rock over time and is actually a type of | Limestone (or organic sedimentary rock) |
| Metamorphic rocks may have bands or layers and is called | Foliated |
| Quartzite, a metamorphic rock without bands or layers is called | Non-foliated |
| True or False: A metamorphic rock can start out as ANY rock type (including metamorphic) | True |
Created by:
erica.sprague
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