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mineral

a naturally occurring inorganic solid with a distinct chemical composition and
crystalline structure

luster

the property of a mineral that describes the quality or appearance of light reflected
from its surface

fracture

the property of a mineral that describes an irregular pattern of breakage in a
direction other than along cleavage planes

cleavage

the tendency of a mineral to split along planes of its crystalline structure where
bonds are weakest

sulfides

a mineral consisting of a metal element combined with sulfur

streak

the property of a mineral that describes its color in powdered form

crystal

a solid substance in which the atoms or ions are arranged in an orderly pattern that
repeats over and over again

mineralogy

the study of minerals and their properties

ore

a metallic element that can be separated from its surrounding rock and sold for profit

rock-forming mineral

a specific group of minerals known to form a rock

silica tetrahedron

a grouping of one silica ion and four oxygen ions that forms the basic
building block of a silicate

silicates

any mineral that has its building block a tetrahedron of silicon and oxygen

carbonate

a nonsilicate mineral that has as its major building block one carbon atom
covalently bonded to three oxygen atoms

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