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BJU Space/Earth 9
BJU - Space and Earth Science - Chapter 9 (4th edition)
| Term | Definition |
|---|---|
| Acid Test | A method for identifying certain minerals by noting the presence or absence of effervescence of a gas when a mineral is exposed to dilute acids. |
| carbonate | A class of minerals that contain the carbonate ion, which consists of a carbon atom and three oxygen atoms bonded together. Most carbonates release bubbles of carbon dioxide gas when exposed to dilute hydrochloric acid. |
| Cleavage | A property of certain minerals that allows them to split easily along certain preferred planes. |
| compound mineral | A mineral made of a chemical compound. Most occur in chemically similar forms that can be grouped into mineral families. |
| fracture | The characteristic manner in which a mineral breaks when it does not exhibit cleavage. |
| halide | A mineral salt compound. Halides include the mineral halite, which is chemically the same as table salt. |
| hardness | In mineralogy, a mineral's ability to scratch and to resist scratching that relates to the strength of the crystal structure. It is rated on the Mohs hardness scale and is a property used to identify minerals. |
| luster | An identifying property of some minerals. It refers to the quality and intensity of light reflected from the mineral's surface. |
| mineral | A naturally occurring, homogeneous crystalline, inorganic solid. |
| mineralogist | A chemical geologist who mainly identifies, classifies, and analyzes minerals. |
| Mohs scale | A scale from 1 to 10 for classifying minerals according to their relative hardness. |
| native mineral | A mineral that contains only one kind of atom and is therefore a pure element. |
| ore | Rock containing one or more minerals that are the source of elements or compounds important to industry or agriculture. |
| oxide | A nonsilicate mineral composed of oxygen and some other element, usually a metal. |
| silicate | A class of minerals that contains mainly silicon and oxygen along with minor amounts of other elements. Quartz and feldspars, both silicates, are the most common minerals in the crust. |
| specific gravity | A ratio of the mass of a mineral to that of an equal volume of water. |
| streak | A oclor test used to identify a mineral. The test involves creating a streak of the mineral's powder by rubbing it on a ceramic plate. |
| sulfide | A mineral composed of one or more metal elements and sulfur. Sulfide ores are important sources of metals. |
Created by:
marchscience
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