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Sasser S6E5b and 5c

Earth Science

TermDefinition
mineral naturally occurring inorganic solid that has a definite chemical composition and an orderly arrangement ofatoms
hardness a measure of how easily a minera lcan be scratched
streak color of a a mineral when it is in poweredform
Mohs Scale a scale of hardness used in mineralogy; its degrees, in increasing hardness are: talc 1;gypsum 2; calcite 3; fluorite 4; apatite 5; feldspar 6; quartz 7; topaz 8;sapphire 9; diamond 10
crystal solid in which the atoms are arranged in an orderly, repeating pattern
luster the way in which light is reflected from the surface of a mineral; can be metallic or nonmetallic
cleavage the tendency of minerals to break with a smooth, flat surface
fracture the tendency of minerals to break with a smooth, flat surface
specific gravity the ratio of a mineral;s weight compared to the weight of an equal volume
inorganic not alive
naturally occurring existing in nature with no outside, man-made help
solid not flowing like liquid or invisible like gas
definite composition a fixed or exact make-up of chemicals in a mineral
atoms the smallest component of an element inside of amineral
silicate describes a mineral that contains silicon, oxygen, and one or more other elements; over 90% of the rock forming minerals in the crust
sedimentary rock rock that has formed through the deposition and solidification of sediment, deposited in layers, and frequently contain fossils
igneous rock rock formed by the cooling and solidifying of molten materials beneath the Earth's surface as magma, or at its surface as lava
metamorphic rock rock that was once one form of rock but has changed to another under the influence o fheat,pressure, or a hot liquid
rock cycle a continuous process by which rocks are created, changed from one form to another, destroyed, and then formed again
pressure the state of being pressed or compressed
intrusive an igneous rock formed inside the earth by lava and contains small crystals
cemented mineral matter, such as silica and calcite, that binds together particles of rock, bone, etc., to form a solid mass of sedimentary rock
compacted pressed together very tightly due to pressure; happens in sedimentary rock
recrystallize to form into crystals; happens in igneous rocks
lithification the process by which loose materials/sediments are changed into sedimentary rock through compaction or cementation
texture the surface of a material, especially as perceived by the sense o ftouch
fine grained a rock that contains small crystals
coarse grained a rock that contains large crystals
glassy resembling glass
foliated a metamorphic rock tha thas minerals arranged invisible layers
nonfoliated a metamorphic rock that has minerals not arranged in visible layers
gem a cut and polished precious stone or pearl fine enough for use in jewelry
ore a metal bearing mineral or rock that can be mined at a profit
Created by: bsasser