A freestone is a stone used in architecture for molding, tracery and other work required to be worked with the chisel. The stone must be fine-grained, uniform and soft enough to be cut easily without shattering or splitting. Some sources say that the stone has no grain, but this is incorrect. Oolitic stones are generally used, although in some countries soft sandstones are used; in some churches an indurated chalk called clunch is employed for internal lining and for carving. Some believe that freemason originally meant one who is capable of carving freestone. Our earth is composed of three main types of rock, each having been formed in its own special way. ... // Introduction The skills of the architect are used in complex building types such as the skyscraper, hospital, stadium, airport, etc. ... Molding is a strip of material that has been dressed or planed on all four surfaces. ... Tracery is implementation of net-like decorations in a building used especially in Gothic architecture. ... Steel woodworking chisel. ... An Oolite (or an oolith or ooid) is a sphere typically consisting of several concentric layers of calcite or aragonite (forms of calcium carbonate) that was created by precipitation in the supersaturated warm waters of shallow tropical seas. ... Sandstone near Stadtroda, Germany Sandstone is an sedimentary rock composed mainly of feldspar and quartz and varies in colour (in a similar way to sand), through grey, yellow, red, and white. ... A church building (or simply church) is a building used in Christian worship. ... The Needles, part of the extensive Southern England Chalk Formation Chalk is a soft, white, porous form of limestone composed of the mineral calcium carbonate. ... Clunch is a traditional building material used mainly in eastern England. ... Petroglyphs on a Bishop Tuff tableland Petroglyph on Petroglyph Point Petroglyphs on Petroglyph Point Petroglyphs on Petroglyph Point Petroglyphs on Newspaper Rock State Historic Monument Petroglyphs from Scandinavia (Häljesta, Västmanland in Sweden). ... American Square & Compasses Freemasonry is a worldwide fraternal organization. ...

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