A cobble (sometimes a cobblestone) is a clast of rock defined on the Udden–Wentworth scale as having a particle size of 64–256 millimeters (2.5–10.1 in)...

Look up cobble in Wiktionary, the free dictionary. Cobble may refer to: Cobble (geology), a designation of particle size for sediment or clastic rock...

Cobble (geology) – Clast of rock Boulder – Natural rock fragment larger than 10 inches Rock (building material) Rocks as a building material Geologic...

conglomerate; and a conglomerate composed largely of cobble-size clasts would be called a cobble conglomerate. Conglomerates are deposited in a variety...

small stones used in paving streets. Cobblestone may also refer to: Cobble (geology), a class of rock fragment larger than a pebble and smaller than a...

words manus, meaning ‘hand’, and portare, meaning ‘carry’. The Makapansgat cobble was first discovered in the 1920s during excavations at an archaeological...

Bartholomew's Cobble is a 329-acre (1.33 km2) National Natural Landmark, open space preserve, agricultural preserve, and bio-reserve located in southwest...

The Makapansgat pebble or Makapansgat cobble (ca. 3,000,000 BP) is a pebble with natural chipping and wear patterns that make it look like a crude rendition...

fine-grained silicate-rich, generally aphanitic matrix or groundmass. In its non-geologic, traditional use, the term porphyry usually refers to the purple-red form...

In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than 25.6 cm (10.1 in) in diameter. Smaller pieces are called cobbles and...