rocks and minerales Flashcards
mineral
a solid inorganic substance
rock
a solid mineral
element
all the elements that people cant be uncovered
compound
a thing that is made of two or more elements
crystal
solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
color
someone’s race.
luster
a gentle sheen or soft glow,
streak
thin line or mark of a different substance or color from its surroundings
cleavage
cell division, especially of a fertilized egg cell.
fracture
breaking of a hard object or material
density
the degree of compactness of a substance.
ore
naturally occurring solid material from which a metal or valuable mineral can be profitably
metallic minerals
are minerals which contain one or more metallic elements. Metallic minerals occur in rare, naturally formed
non- metallic minerals
Non-metallic mineral reserves consist of stone quarries and clay and sand pits
gemstone
a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry.
