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Chapter 2 Minerals
Review
| Question | Answer |
|---|---|
| Minerals that break along, smooth, flat surfaces. | Cleavage |
| Minerals that break with uneven, rough, or jagged surfaces. | Fracture |
| A solid in which the atoms are arranged in orderly, repeating patterns. | Crystal |
| Highly prized minerals because they are rare and beautiful. | Gem |
| The way a mineral reflects light. | Luster |
| A measure of how easily a mineral can be scratched. | Hardness |
| Minerals that contain silicon and oxygen and usually one or more other elements. | Silicate |
| The color of a mineral when it is in a powdered form. | Streak |
| Hot melted rock material. | Magma |
| A naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms. | Mineral |
| The ratio of a minerls weight compared with the weight of an equal volume of water. | Specific Gravity |
| A mineral or a rock that contains a useful substance that can be mined at a profit. | Ore |
| When magma cools slowly, the crystals formed are generally? | Large |
| What mineral is black in color, leaves a black streak, has a dull metallic luster, and is attracted to magnets? | Magnetite |
| Halite, diamond, and graphite are examples of what? | Minerals |
| A durable, lightweight metal derived from minerals such as ilmenite or rutile is called what? | Titanium |
| Mineral deposits left behind that fill in the open spaces created by weaknesses in rock formations are called what? | Vein Mineral Deposits |
| What is a man-made mineral called? | Synthetic |
| Name the five properties that help identify minerals. | 1) color 2) appearance 3) hardness 4) streak 5) breakage (cleavage or fracture) |
| What are atoms called that are arranged in a pattern that repeats over and over? | Crystalline |
| What are the four characteristics of a mineral? | 1) Formed by natural processes 2) Inorganic 3) Crystalline solid 4) Have a definite chemical composition |
| What is the mineral found in pencil lead called? | Graphite |