ground-stone

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• Ground stone — In archaeology, ground stone is a category of stone tool formed by the grinding of a coarse grained tool stone, either purposely or incidentally. Ground stone tools are usually made of basalt, rhyolite, granite, or other macrocrystalline igneous… …   Wikipedia

• Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …   Universalium

• Stone tool — A stone tool is, in the most general sense, any tool made of stone. Although stone tool dependent cultures exist even today, most stone tools are associated with prehistoric societies that no longer exist.The study of stone tools is often called… …   Wikipedia

• Stone Age — The Stone Age is a broad prehistoric time period during which humans widely used stone for toolmaking.Stone tools were made from a variety of different kinds of stone. For example, flint and chert were shaped (or chipped ) for use as cutting… …   Wikipedia

• Ground Control (video game) — Ground Control Developer(s) Massive Entertainment Publisher(s) Sierra On Line …   Wikipedia

• Ground Control II: Operation Exodus — Developer(s) Massive Entertainment Publisher(s) …   Wikipedia

• Ground Control — Entwickler Massive Entertainment Publisher …   Deutsch Wikipedia

• Ground-Control — Entwickler: Sierra On Line Publikation: 1. Juni, 2000 Plattform(en): Microsoft …   Deutsch Wikipedia

• stone-ground — [stōn′ground′] adj. ground between millstones, as of buhrstone or sandstone, to make more nourishing flour, meal, etc. [stone ground wheat] …   English World dictionary

• Stone & Webster — Type Subsidiary Industry Engineering Founded 1889 (Boston, Massachusetts) …   Wikipedia