definition of mineral naturally occurring, inorganic solid with a definable chemical composition and...
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DEFINITION OF MINERALNaturally occurring, Inorganic Solid with adefinable chemical composition and crystal structurePhysical Properties
Crystal Form (Shape) Page 22
Cubic - Fluorite
Dodecahedron - Garnet
Hexagonal Prism - Quartz
Octahedron - Magnetite
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Cleavage Page 23Planes of weakness along which minerals break
One Plane Two Planes at right anglesTwo Planes notat right angles
Three Planes at right anglesThree Planes notat right angles
Fracture Page 23no well defined cleavage planesConchoidal Fracture
Specific Gravity The weight of a mineral compared to the same volume of water
Luster Intensity of light reflected off a mineral Metallic, non-metallic- glassy (vitreous) and earthy (dull)
Color and Streak Page 24
Hardness – Mohs ScaleSoftMediumHard
Other PropertiesReaction with acidTasteMagnetism
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