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Minerals & Rocks
Ch. 22.2 & 22.3 words
Question | Answer |
---|---|
An inorganic crystal with a unique set of physcial properties; They combine to make rocks. | Mineral |
A mineral property that measures how the resistance of a mineral to being scratched. | Hardness |
The way in which the surface of a mineral reflects light; Examples: Glassy, metallic, greasy, etc. | Luster |
The tendency of certain minerals to break in specific patterns, like sheets or cubes | Cleavage |
The tendency of a mineral to break in a random pattern | Fracture |
Minerals that react with acid contain _________. | Calcium. |
The color produced by the mineral when rubbed on a ceramic tile. | Streak |
A collection of mineral or mineral groups; Classified as igneous, sedimentary, or metamorphic | Rocks |
Rocks formed from molten magma that cools and crystalizes (hardens) | Igneous |
Igneous rocks that cool and crystallize under Earth's surface; cool slowly; have crystals. | Intrusive |
Igneous rocks that cool and crystallize on the surface; cool quickly; have air pockets, are glassy, and have few or no crystals. | Extrusive |
Rocks formed from fragments of rocks that are buried and compacted together. | Sedimentary Rocks. |
Rocks formed on or near the surface with the help of weathering and erosion. | Sedimentary Rocks. |
Rock type that may have fossils. | Sedimentary |
Type of sedimentary rock that forms when pieces of sediments are cemented together when compressed or buried. | Clastic |
Type of sedimentary rock formed when salts and minerals precipitate out of solution. | Chemical |
Type of sedimentary rock formed from once living organisms or their life processes. | Organic |
Rock type that forms when rocks are changed by heat, pressure, or chemical reactions. | Metamorphic rocks. |
Rock types that usually forms deep in the crust, at the base of mountains, near volcanic vents, or by hot springs. | Metamorphic rocks. |
Striped bands of light and dark minerals present in some metamorphic rocks | Foliations |