40 DMG VS STONEWORK SERIES

border stone – usually a flat stone used as an edging material. Bond stones are generally cut to twice the bed thickness of the material being used. bond stone – used in varying percentages to anchor or bond the stone veneer to the backing material.It has also been applied in places to thinly layered gneisses and schists that can be split and used as flagging, but such stones are not properly embraced by this definition, although they may be marketed properly as flagstone. The term has been applied particularly to sandstones of Devonian age that are being or have been quarried in eastern New York and Pennsylvania and in western New Jersey, but similar stones that occur elsewhere may be included. It is considered to be a variety of flagstone, the thin relatively smooth-surfaced slabs being suitable for use as flagging. Bluestone is not a technical geologic term. bluestone – a dense, hard, fine-grained, commonly feldspathic sandstone or siltstone of medium to dark or bluish-gray color that splits readily along original bedding planes to form thin slabs.bevel – when the angle between two sides is greater or less than a right angle.belt course – a continuous horizontal course of flat stones placed in line marking a division in the wall plane.(2) In stratified rocks the unit layer formed by semidentation of variable thickness, and commonly tilted or distorted by subsequent deformation generally develops a rock cleavage, parting, or jointing along the planes of stratification. Sometimes applied also to the surface of parting between sheets. (1) In granites and marbles, a layer or sheet of the rock mass that is horizontal, commonly curved and lenticular as developed by fractures. bed – the top or bottom of a joint, natural bed surface of stone parallel to its stratification.

basalt – a dense-textured (aphanitic), igneous rock relatively high in iron and magnesia minerals and relatively low in silica, generally dark grey to black, and feldspathic a general term in contradistinction to felsite, a light-colored feldspathic and highly siliceous rock of similar texture and origin.

banker – bench of timber or stone on which stone is shaped.

40 DMG VS STONEWORK SERIES

balustrade – an ornamental fencing consisting of a series of balusters supporting a handrail or molding.

baluster – a miniature pillar or column supporting a rail, used in balustrades.

back arch – a concealed arch carrying the backing of a wall where the exterior facing is carried by a lintel.

ashlar – stones basically rectangular in shape and exhibiting the split face of the stone revealing striations that can be quite colorful.

arris – a natural or applied line on the stone from which all leveling and plumbing is measured.

Also called arkosic sandstone, feldspathic sandstone.

arkose – a sandstone containing 10% or more clastic grains of feldspar.

argillite – a compact sedimentary rock composed mainly of clay and aluminum silicate minerals.architrave – the member of an entablature resting on the capitals of columns and supporting the frieze.arch – a curved stone structure resting on supports at both extremities used to sustain weight, to bridge or roof an open space.apex stone – uppermost stone in a gable, pediment, vault or dome.anchors – types of stonework include those made of flat stock (strap, cramps, dovetails, dowel, strap and dowel, and two-way anchors) and round stock (rod cramp, rod anchor, eyebolt and dowel, flat-hood wall tie and dowel, dowel and wire toggle bolts).agate – a variegated variety of quartz showing colored bands or other markings (clouded, mosslike, etc.).adhered – veneer secured and supported through adhesion to an approved bonding material applied over an approved backing.

abutment – a solid stone “springer” at the lowest point of an arch or vault.

abrasive finish – a flat non-reflective surface finish for marble.

40 dmg vs stonework