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Minerals:
stuff for the minerals test
| Question | Answer |
|---|---|
| Whats an ore? | a mineral or rock that contains a useful substance that can be mined at a profit |
| Whats a gem? | a highly prized mineral because of its rareness and beauty |
| whats a fracture? | when minerals break with uneven, rough or jagged structures |
| Whats the cleavage of a mineral? | when minerals break along smooth,flat surfaces |
| Whats the luster? | the way a mineral reflects light (metallic,nonmettalic) |
| Whats the hardness? | the measure of how easily a mineral can be scratched |
| Whats a mineral? | element or compound that has its structures determined by repeating patterns of atoms |
| What is magma? | hot melted rock material |
| What is a silicate? | mineral containing silicon,oxygen and 1 or more elements |
| Whats the streak? | the color of a mineral when its in powder form |
| What are the characteristics that all minerals share? | formed by natural processes,inorganic,element or compund with def. chemical composition and they r crystalline solids |
| What are the 2 ways that minerals can form? | by magma or solutions |
| What determines the size of a crystal? | magma-how fast the magma cools |
| What does crystalline mean? | that atoms are arranges in a pattern thats repeated over and over again. |
| What are the 7 physical properties used to identify minerals? | color,hardness,luster,streak,cleavage,fracture,crystal form and other properties |
| Who made the Mohs Scale? | Friedrich Mohs |
| What does the Mohs scale help determine? | helps determine minerals and how hard they are |
| What is the hardest and softest mineral on the Mohs scale? | hardest: diamonds (used to cut things)Softest: talc |
| Why are gems more valuaable than other minerals? | gems r rare and beautiful they may also b clearer, brighter and more colorful and some gems can be cut and polished to look better |
| What are some elements in minerals? | ores, vein minerals and minerals with titanium |
| What are some types of ores? | iron, aluminum, zinc and titanium |
| What are ores used in? | frying pans, ship parts and magnets |
| What are some things that have aluminum in them? | bikes, sodacans, foil and lightwieght parts for cars |
| sphalerite is used in what? | batteries |
| What are some things that have titanium in them? | golf clubs, racing bike, kneww or hip replacements, car parts, glassframes,tennis rackets, racing and bball wheelchairs |
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VaLeRiA!
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