Graptolitic: alternatives and connections

A variety of shale or clay slate, containing iron pyrites, the decomposition of which leads to the formation of alum, which often effl…

Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc.

That part of a roofing slate, shingle, tile, or metal plate, which is exposed to the weather.

Lydian stone, or black jasper, a variety of siliceous or flinty slate, of a grayish or bluish black color. It is employed to test the…

The lower surface of a brick, slate, or tile.

Division into laminae, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pre…

A child's game played on paper or on a slate, consisting of lines arranged in the form of a cross.

In coal seams, coal rendered worthless by impurities in the seam; as, slate fault, dirt fault, etc.

Pieces of metal, built into the joints of a wall, so as to lap over the edge of the gutters or to cover the edge of the roofing; also,…

That part of a shingle, slate, or tile, which is exposed to the weather, when laid; also, one course of such shingles, slates, or tile…

Resembling gneiss; having some of the characteristics of gneiss; -- applied to rocks of an intermediate character between granite and…

The direction, arrangement, or appearance of the fibers in wood, or of the strata in stone, slate, etc.

Any species of slate suitable to be written on.

One of numerous species of slender and delicate fossils, of the genus Graptolites and allied genera, found in the Silurian rocks. They…

To cover, as a roof, with tiles, slate, lead, or the like.

Suitable to be written upon; capable of being written upon, as a slate; -- said especially of a certain kind of globe.

Hence: The record of the rate of ship's speed or of her daily progress; also, the full nautical record of a ship's cruise or voyage; a…

To stain or grain in imitation of marble; to cover with a surface resembling marble; as, to marbleize slate, wood, or iron.