FIELD STONE

Loose blocks separated from ledges by natural processes and scattered through or upon the regolith (soil) cover; applied also to similar transported materials, such as glacial boulders and cobbles.


FINES

The powder, dust, silt-size, and sand-size material resulting from processing (usually crushing) rock.


FINISHES

Surface treatments, commonly available as:Smooth - machine finished by saw, grinder or planerHoned - dull sheen, without reflectionsPolished - mirror gloss with sharp reflectionsMachine Tooled - 4-cut, 6-cut, chiseled, axed, pointed, etc.Chat Sawn - irregular and uneven markingsSplit Face - concave-convexRock Face - convexThermal - plane surface with flame finish applied by mechanically controlled means to create surface coarsenessSpecial finishes of many kinds are available to meet design requirements.


FLAGSTONE

Thin slabs of stone used for flagging or paving walks, driveways, patios, etc.; generally fine-grained sandstone, bluestone, quartzite or slate although other stones may be used.


GAUGED OR GAUGING

A grinding process that results in the uniform thickness of all pieces of material to be used together.


GRAIN

The easiest cleavage direction in a stone. "With the grain" is the same as "natural bed." Also, the composition and texture of particles, crystals, sand, or rock.


GRANITE

A fine to coarse-grained, igneous rock formed by volcanic action and consisting of quartz, feldspar, mica, and accessory minerals. Granite-type rocks include those of similar texture and origin.


GREENSTONE

Stones that have been metamorphosed or otherwise so altered that they have assumed a distinctive greenish color owing to the presence of one or more of the following minerals: chlorite, epidote, or actinolite.


HAND CUT RANDOM RECTANGULAR ASHLAR

A pattern where all the stone is hand cut into squares and rectangles, and where all the joints are fairly consistent. Similar to sawed-bed ashlar in appearance.


HAND DRESSED
- See DRESSED HAND or MACHINE PITCH FACED also known as ROCK FACED ASHLAR

A finish given to both veneer stone and cutting stock, created by establishing a straight line back from the irregular face of the stone. Proper tools are then used to cut along the line leaving a straight arris and the intended rustic finish on the face.


HONED FINISH

A super fine smooth finish.
New Mexico Travertine