rock and minerals Flashcards
composed of rocks and minerals
Terrestrial planet
outermost layer of our planet composed of the crust and the upper mantle
Lithosphere
Naturally-occurring aggregate or combination of minerals and mineraloids, such as fossils and glass.
rock
What are the types of rock
Igneous rock
sedimentary rock
metamorphic rock
are formed through cooling of magma or lava.
from solidified molten rock materials, usually hard and crystalline
Igneous rock
good crystallization (coarse-grained) may become plutonic rocks or intrusive rocks
from a slow-cooling magma:Below the surface
from the consolidation of particles erupted by explosive volcanic activity
from fast cooling lava:On the surface
may become pyroclastic rocks
On the surface:from the consolidation of particles erupted by explosive volcanic activity
combination of products of weathering and erosion, and organic materials.
Sedimentary Rock
process by which these unconsolidated material become solidified
LITHIFICATION
Soil material that combines one or more clay materials with traces of quartz, metal oxides, and organic matter.
Clay
Composed of skeletal fragments of marine organisms such as corals, foraminifera, and mollusks.
Limestone
composed mainly of sand-sized mineral particles or rock fragments.
Sandstone
Black sedimentary rock (carbon and hydrocarbon) that can be burned for fuel and use to generate electricity.
Coal
Deep within Earth’s surface formed through exposure of sedimentary or igneous rock to high pressure, high temperature, or both.
Metamorphic rocks
means “to change from”
Metamorphism
refers to original rock which can either be igneous rock, sedimentary rock, or a metamorphose prior to metamorphism.
Prolith
size, shape, and arrangement of mineral grains and other constituents, which are controlled by rock formation processes.
Texture
both the type of minerals within a rock and the overall chemical makeup of the rock.
Composition
grains which are big enough to see
Phaneritic
grains that are too small to see and identify.
Aphanitic
composed of elements such as those found in periodic table
has definite chemical proportion which can be described in chemical formula
structure arranges atoms in a crystalline pattern
Minerals
study of the chemistry of minerals, crystal structure, and their physical and optical properties
mineralogy
person who studies minerals.
Mineralogist
founder of mineralogy.he was the first to systematically classify minerals
Abraham Gottlob werner
Naturally-occurring chemical compounds
Inorganic
Homogenous solids
Minerals
quality of light on the surface of a rock, crystal or mineral
Luster
caused by absorption or lack of visible light by their crystalline structure
Color
color of the powdered mineral produced when dragged across an unweather surface (Streak test).
Distinguishing metallic minerals.
Streak
mineral’s ability to resist scratching or abrasion.
Hardness
Hardness is measured by
Mohs Scale of hardness
tendency of mineral to split, or cleave, along planes of weakness.
cleavage
break easily and cleanly along one or more planes.
Good cleavage
break is not defined
Poor cleavage
silicon-oxygen tetrahedrons (SiO42-).
major rock-forming minerals
olivine ((Mg,Fe)2SiO4) and quartz (SiO2)
Silicates
metal cations bonded to oxygen anions.
- magnetite (Fe3O4) and hematite (Fe2O3)
Oxides
etal cation bonded to sulfide (S2-).
Ore minerals along with oxides since metals form a high proportion of the mineral.
Galena (PbS) and pyrite (FeS2]
Sulfide
metal cation bonded to the SO42- anionic group.
precipitate out of water near Earth’s surface.
gypsum (CaSO42H2O).
Sulfates
halogen ion (chlorine or fluorine) halite or rock salt (NaCl) and fluorite (CaF2).
Halides
carbonic ion (CO32-) which bonds elements such as calcium or magnesium calcite (CaCO3) or dolomite (CaMg(CO3)2).
Carbonates
consist of a single metal such as copper (Cu) and gold (Au).
Native metals
set of processes through which useful resources are withdrawn from a stock of any nonrenewable resource.
Mining
naturally-occurring materials that can be profitably mined
Ore
a potential ore body if it its localized abundance is greater that its average abundance or distribution on Earth’s crust.
Deposit
economically importat mineral
fossil fuels
Aggregates
Metal resources