minerals
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characteristics of a mineral?
-naturally occuring -found in nature -solid -inorganic -definite chemical composition -regular atomic structure
how are minerals formed?
-cooling & solidification of magma -precipitation from water[evaporation] -temperature change/rearrangement of atoms[heat/pressure
what determines the physical properties of a mineral?
way in which atoms are arranged
how are minerals grouped?
according to their chemical compositions
what type of minerals are most common?
silicates
most rock forming minerals are silicates that result in a .. shape
tetrahedron[pyramid]
what are the mineral tests?
-color -luster -hardness -streak -density
what is fracture?
uneven break
what is cleavage?
smooth/parallel surfaces