Slate vs. Charcoal — What's the Difference?

Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock.

Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, called charcoal burning, the heat is supplied by burning part of the starting material itself, with a limited supply of oxygen.

A fine-grained metamorphic rock that splits into thin, smooth-surfaced layers.

A porous black solid, consisting of an amorphous form of carbon, obtained as a residue when wood, bone, or other organic matter is heated in the absence of air.

A piece of this rock cut for use as roofing or surfacing material or as a writing surface.

A black, porous, carbonaceous material, 85 to 98 percent carbon, produced by the destructive distillation of wood and used as a fuel, filter, and adsorbent.

A writing tablet made of a similar material.

A drawing pencil or crayon made from this material.

A record of past performance or activity

A drawing executed with such a pencil or crayon.

A list of the candidates of a political party running for various offices.

A dark grayish brown to black or dark purplish gray.

A dark or bluish gray to dark bluish or dark purplish gray.

To draw, write, or blacken with a black, carbonaceous material.

Made of a fine-grained metamorphic rock

To charbroil.

Of the color slate.

Impure carbon obtained by destructive distillation of wood or other organic matter, that is, heating it in the absence of oxygen. Category:en:Carbon

To cover (a roof, for example) with slate.

(countable) A stick of black carbon material used for drawing.

To put on a list of candidates.

(countable) A drawing made with charcoal.

To schedule or designate

A very dark gray colour.

A fine-grained homogeneous sedimentary rock composed of clay or volcanic ash which has been metamorphosed so that it cleaves easily into thin layers.

Of a dark gray colour.

(uncountable) The bluish-grey colour of most slate.

Made of charcoal.

(countable) A chalkboard, sheet of slate for writing on with chalk or with a thin rod of slate (a slate pencil) formerly commonly used by both students and teachers in schools.

To draw with charcoal.

(countable) A roofing-tile made of slate.

To cook over charcoal.

(countable) A record of money owed.

Impure carbon prepared from vegetable or animal substances; esp., coal made by charring wood in a kiln, retort, etc., from which air is excluded. It is used for fuel and in various mechanical, artistic, and chemical processes.

A list of affiliated candidates for an election.

Finely prepared charcoal in small sticks, used as a drawing implement.

An artificial material resembling slate and used for the same purposes.

A carbonaceous material obtained by heating wood or other organic matter in the absence of air

A thin plate of any material; a flake.

A stick of black carbon material used for drawing

A tablet computer.

A very dark gray color

Having the bluish-grey/gray colour of slate.

A drawing made with charcoal

(transitive) To cover with slate.

Draw, trace, or represent with charcoal

To criticise harshly.

Very dark gray

To schedule.

To anticipate or strongly expect.

To set a dog upon (a person).

To nominate, appoint, or designate.

An argillaceous rock which readily splits into thin plates; argillite; argillaceous schist.

Any rock or stone having a slaty structure.

A prepared piece of such stone.

An artificial material, resembling slate, and used for the above purposes.

A thin plate of any material; a flake.

A list of candidates, prepared for nomination or for election; a list of candidates, or a programme of action, devised beforehand.

To cover with slate, or with a substance resembling slate; as, to slate a roof; to slate a globe.

To register (as on a slate and subject to revision), for an appointment.

To set a dog upon; to bait; to slat. See 2d Slat, 3.

(formerly) a writing tablet made of slate

Thin layers of rock used for roofing

A fine-grained metamorphic rock that can be split into thin layers

A list of candidates nominated by a political party to run for election to public offices

Designate or schedule;

Enter on a list or slate for an election;

Cover with slate;