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Stack #221103
Cubangbang's 8th Ch. 14 Minerals and Ores Stack #221103
| Question | Answer |
|---|---|
| What evidence do we have that God intends humans to mine for minerals in the earth? | Job 28 |
| What are naturally occuring, inorganic, crystalline solid with a definite chemical composition? | minerals |
| What are minerals that come from living things called? | organic minerals |
| a rock containing one or more minerals that are the source of elements or compounds important to industry or agriculture | ores |
| What happened to the mineral deposits that were originally created in the earth? | The Great Flood |
| A substance composed of one kind of atom, that is, atoms having the same number of protons in their nuclei | Elements |
| A mineral that contains only one kind of atom and is therefore a pure element | Native Mineral |
| A substance formed from two or more elements combined in a fixed ratio characteristic for that compound | Compound |
| Two or more substances mixed together but not chemically combined | Mixture |
| Geologists who specialize in identifying minerals | mineralogists |
| Geologists begin to identify a spesimen by observing its... | Color |
| A mineral identification test made by rubbing a specimen across an unglazed porcelain tile and observing the color of the powdered mineral that remains | Streak |
| The quality and intensity of light reflected from the mineral's surface | Luster |
| A method used to identify the specimens crystal shape and growth | Crystal shape and growth |
| The growth or enlargement of a crystal by the attachment of additional particles from a soultion or melt | accretion |
| A property of certain minerals that allows them to split easily along certain preferred planes | Cleavage |
| The characteristic manner in which a mineral breaks when it does not exhibit cleavage | Fractures |
| A comparsion of the ability of one substance to scratch or be scratched by another, resulting in a numerical rating from 1 to 10 on the Mohs hardness scale | Hardness Test |
| A scale from 1 to 10 for classifying minerals according to their relative hardness | Mohs scale |
| A ratio of the mass of a mineral to that of an equal volume of water | specific gravity |
| A means of identifying the presence of certain elements in a mineral by observing the mineral's color when heated in a flame | Flame Test |
| A method for identifying certain minerals by nothing the presence or absence of effervescence of a gas when a mineral is exposed to dilute acids | Acid Test |
| An identifying property of certain minerals whereby they they are able to attract iron. | Magnetism |
| A magnetic mineral called magnetite that was once used as the magnetic element in navigation compasses | lodestone |
| The rate at which nuclear particles and rays are emmited by a radioactive substance | Radioactivity |
| A visable glow given off by some minerals when they absorb high-energy but invisable ultraviolet light | Luminescence |
| The blending of a wave when it changes speed because the material through which it is moving changes in some way | Refraction |
| The process in which light waves are filtered so that they vibrate in only one direction when they exit the filter | polarization |
| A percious, dense, yellow metal that often occurs as a native mineral in the form of viens or placer deposit | gold |
| A deposit consisting of fine flecks of gold or other dense native minerals eroded out of the parent rocks | placer deposits |
| A method for separating placer gold from the sand and gravel in which it is found | panning |
| a method of mechanically processing ores in order to extract dense metals by flowing crust rock mixed with water down a long, ridged trough | sluicing |
| A method of underwater mining where mineral placer deposits are scooped oof river or lake beds by floating machinery and mechanically processed to remove valuable minerals | dredging |
| A precious, metallic, native mineral with a specific gravity of 10.5 | Silver |
| A common metal aften found as a native mineral and used in many applications because it conducts both electricity and heat very well | Copper |
| A percious, white-silver, metallic, native mineral with a specific gravity of 21.5, denser than gold | Platinum |
| A native mineral compound of pure inorganic carbon. | diamond |
| Cylindrical bodies of volcanic breccia in the necks of extinct volcanoes where diamonds are somethimes found | diamond pipes |
| A unit of weight (actually mass) for gem stones equal to 0.2 grams | carat |
| a nonmetallic, native mineral consisting of the pure element sulfur, which is identified by its yellow color and conchoidal fracture | sulfur |
| A method of mining sulfur in which extremely hot water is pumped into the deposit, melting the sulfur so it can be forced to the surface by compressed air | Frasch process |
| Class of minerals that contains mainly silicon and oxygen along with minor amounts of other elements | silicates |
| A nonsilicate mineral composed of oxygen and some other element, usually a metal | oxides |
| Compound composed of one or more elements and sulfur | sulfides |
| A class of minerals that contain the carbonate ion, which consists of a carbon atom and three oxygen atoms bonded together | Carbonates |
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kaikerrk
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