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Phyllite vs. Slate — What's the Difference?

Phyllite vs. Slate — What's the Difference?

Difference Between Phyllite and Slate

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Phyllite

Phyllite ( FIL-yte) is a type of foliated metamorphic rock created from slate that is further metamorphosed so that very fine grained white mica achieves a preferred orientation. It is primarily composed of quartz, sericite mica, and chlorite.Phyllite has fine-grained mica flakes, whereas slate has extremely fine mica flakes, and schist has large mica flakes, all mica flakes of which have achieved a preferred orientation.

Slate

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.

Phyllite

A green, gray, or red metamorphic rock, similar to slate but often having a wavy surface and a distinctive micaceous luster.

Slate

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

Phyllite

(geology) A type of metamorphic rock formed from clay-rich sediments called pelites.
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Slate

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

Phyllite

A mineral related to ottrelite.

Slate

A writing tablet made of a similar material.

Slate

A record of past performance or activity
Start over with a clean slate.

Slate

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

Slate

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

Slate

Made of a fine-grained metamorphic rock
A slate roof.

Slate

Of the color slate.

Slate

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

Slate

To put on a list of candidates.

Slate

To schedule or designate
Our professor has slated the art history lecture for Thursday afternoon.
Was slated to direct the studio's next film.

Slate

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

Slate

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

Slate

(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.

Slate

(countable) A roofing-tile made of slate.

Slate

(countable) A record of money owed.
Put it on my slate – I’ll pay you next week.

Slate

A list of affiliated candidates for an election.

Slate

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

Slate

A thin plate of any material; a flake.

Slate

A tablet computer.

Slate

Having the bluish-grey/gray colour of slate.

Slate

(transitive) To cover with slate.
The old church ledgers show that the roof was slated in 1775.

Slate

To criticise harshly.
The play was slated by the critics.

Slate

To schedule.
The election was slated for November 2nd.

Slate

To anticipate or strongly expect.
The next version of our software is slated to be the best release ever.

Slate

To set a dog upon (a person).

Slate

To nominate, appoint, or designate.

Slate

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

Slate

Any rock or stone having a slaty structure.

Slate

A prepared piece of such stone.

Slate

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

Slate

A thin plate of any material; a flake.

Slate

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

Slate

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

Slate

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

Slate

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

Slate

(formerly) a writing tablet made of slate

Slate

Thin layers of rock used for roofing

Slate

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

Slate

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

Slate

Designate or schedule;
He slated his talk for 9 AM
She was slated to be his successor

Slate

Enter on a list or slate for an election;
He was slated for borough president

Slate

Cover with slate;
Slate the roof

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