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*Elements such as Ca or Mg bond to this group
〖CaCO〗_3 = calcite
〖(CaMg[CO〗_3] 2 = dolomite
A mineral has "cleavage" if it breaks to form distinct planar surfaces that ahve specific orientation in relation to the crystal structure.
A naturally occuring solid, formed by geologic processes
*has a crystaline structure and a defineable chemical composition.
*almost all are inorganic
Mohs hardness scale
A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals.
*Early 1800's Friedrich Mohs listed some minerals in sequence of relative hardness.
two or more minerals having the same chemical composition but different crystalline structures.
Oxygen atoms are positioned in the corners of a tetrahedron.
Represents the density of a mineral.
*specified by ratio between weight of a volume of the mineral and weight of an equal volume of H2O at 4°C.
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