Quartz crystals
Quartz is the most abundant mineral in the Earth s continental crust It is made up of a lattice of silica SiO2 tetrahedra and forms hexagonal crystals as shown here
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Photo credit: © Scott Camazine / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: crystal, hexagon, mineral, quartz, silica, silicate, sio2, stone, tetrahedra