Laminated Sandstone & Sand - Sand becomes cemented to form sandstone Particle sizes between 2mm and 0.06mm Size: 20 cm Micaceous Sandstone Contains muscovite mica indicating little transportation and deposition in water and not by wind Size: 8 cm Arkose - Sandstone distinct by its high content of feldspar grains Arizona, USA Size: 9 cm Glauconitic Sandstone Contains the green mica Glauconite indicating a marine deposition environment Size: 8 cm Conglomerate & Gravels - Gravels become cemented to form conglomerate Particles larger than 2mm in diameter Size: 10 cm Poorly Sorted Conglomerate Rounded and poorly sorted clasts indicate long transportation and rapid deposition Size: 15 cm Breccia – Angular clasts indicate little transportation from a source nearby Particles larger than 2mm in diameter Size: 20 cm Beachrock Forms by rapid cementation of recent beach sediments (note fragment of bottle glass) Size: 20 cm