(pebəl ) Word forms: plural pebbles. countable noun. A pebble is a small, smooth, round stone which is found on beaches and at the bottom of rivers.

Clastic sedimentary rocks may have particles ranging in size from microscopic clay to huge boulders. Their names are based on their clast or grain size. The smallest grains are called clay, then silt, then sand. Grains larger than 2 millimeters are called pebbles.

Transport of pebbles in a stream causes them to collide and rub against one another and the stream bed, and the resulting abrasion produces the familiar smooth and rounded shape of river rocks.

In archaeology, a stone ball or petrosphere (from Greek πέτρα (petra), “stone”, and σφαῖρα (sphaira), “ball”) is the name for any spherical man-made object of any size that is composed of stone.

Locally, they are also known as bolas de piedra (literally stone balls)….Stone spheres of Costa Rica.

This much is certain: there is no nearby source for the type of stone the Spheres are made of, which means that these pre Colombian artifacts must have been moved great distances. In any event, these mysterious stone spheres are unique to Costa Rica and the indigenous people who lived in the Disquis Delta.

Indian Ball is a “bat-and-ball” game featuring a baseball bat and ball. The sport originated in the late 1940s in St. Louis, Missouri so that if 18 players weren’t available to play a regular baseball game or a full sized field wasn’t available they could play an alternate game much like baseball but for fewer players.

Stickball developed in the late 18th century from such English games as old cat, rounders, and town ball. Stickball also relates to a game played in southern England and colonial Boston in North America called stoolball. All of these games were played on a field with bases, a ball, and one or more sticks.

A discoidal is a round Mississippian game stone that was used in the ancient Native American game known as chungke or chunkey. They are found throughout the southeastern and midwestern United States.

Definitions of discoidal. adjective. having a flat circular shape. synonyms: disc-shaped, disclike, discoid, disk-shaped, disklike circular, round. having a circular shape.

A gorget is a decorative or protective polished stone piece, worn around the throat or chest. (

A gorget is a metal neck piece, lunette or crescent-shaped, usually made of silver or gilded brass. Until the end of the 18th century gorgets were worn by many officers in many countries as symbols of rank.

armor protecting the throat

European accounts suggest nutting stones were used to make mast (harvested nuts) by placing the nut on the stone and cracking it using a wooden or stone hammer. Nuts such as hiquara (hickory), pakan (pecan), ahsmenuns (walnut), and anaskimmins (acorn) played an important role in the Virginia Indian diet.

Variously known as cupstones, “anvil stones”, “pitted cobbles” and “nutting stones”, among other names, these roughly discoidal or amorphous groundstone artifacts are among the most common lithic remains of Native American culture, especially in the Midwest, in Early Archaic contexts.

The type of rock most commonly used in fire starting is flint or any type of rock in the flint family, such as quartz, chert, obsidian, agate or jasper. Other stones also have been known to work.