A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.

clastic rock composed of grains from 0.0625 to 2 mm in diameter, usually quartz, feldspar, and rock fragments, bound together by a cement of quartz, carbonate, or other minerals, or by a matrix of clay minerals.

A cemented or otherwise compacted detrital sediment composed predominantly of quartz sand grains.

Rock composed mainly of sand-sized particles or fragments of the mineral quartz.

Natural stone with porous, granular texture, usually very porous.

yellow stone used to build some mission churches

A soft to medium-hard stone used for walls, foundations and chimneys. The softer variety is used for interior veneer.