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. Foliation may not correspond to the original sedimentary layering, but instead is in planes perpendicular to the direction of metamorphic compression.
The foliation in slate, called "slaty cleavage", is caused by strong compression in which fine-grained clay forms flakes to regrow in planes perpendicular to the compression. When expertly "cut" by striking parallel to the foliation with a specialized tool in the quarry, many slates display a property called fissility, forming smooth, flat sheets of stone which have long been used for roofing, floor tiles, and other purposes. Slate is frequently grey in color, especially when seen en masse covering roofs. However, slate occurs in a variety of colors even from a single locality; for example, slate from North Wales can be found in many shades of grey, from pale to dark, and may also be purple, green, or cyan. Slate is not to be confused with shale, from which it may be formed, or schist.
The word "slate" is also used for certain types of object made from slate rock. It may mean a single roofing tile made of slate, or a writing slate, which was traditionally a small, smooth piece of the rock, often framed in wood, used with chalk as a notepad or notice board, and especially for recording charges in pubs and inns. The phrases "clean slate" and "blank slate" come from this usage.
Sorrento ( sə-REN-toh, Italian: [sorˈrɛnto]; Neapolitan: Surriento [surˈrjendə]; Latin: Surrentum) is a town overlooking the Bay of Naples in Southern Italy. A popular tourist destination, Sorrento is located on the Sorrentine Peninsula at the southern terminus of a main branch of the Circumvesuviana rail network, within easy access from Naples and Pompei. The town is widely known for its small ceramics, lacework and marquetry (woodwork) shops.
The Sorrentine Peninsula has views of Naples, Vesuvius and the Isle of Capri. The Amalfi Drive, connecting Sorrento and Amalfi, is a narrow road along the high cliffs above the Tyrrhenian Sea.
Ferries and hydrofoils connect the town to Naples, Amalfi, Positano, Capri and Ischia.
Limoncello, a digestif made from lemon rinds, alcohol, water and sugar, is produced in Sorrento along with citrus fruit, wine, nuts and olives.
Tub may refer to:
- A tub (container):
- a round or oblong container with or without a lid:
- a shallow, plastic or paper container, typically with a lid or closure
- Tub (unit), a former quantity for sale or butter or cheese
- A bathtub, a plumbing fixture for bathing
- Hot tub, a large bath or small pool designed to comfortably hold multiple persons
- Quarry tub, a type of railway or tramway wagon
- Slack tub, in blacksmithing, a quench
- Tub boat, an unpowered cargo boat used on early canals
- Twin tub, a type of washing machine
- Tub file, in computing, an early, primitive random access memory technology.
- Tub Welch, a baseball player.
TUB may refer to:
- TUB (gene)
- Citroën TUB, a light van
- Technische Universität Berlin (Germany)
- Transports Urbains du Beauvaisis, local public transport operator in northern France
- Tubuai – Mataura Airport (IATA airport code)
TUBS or Tubs may refer to:
- Time unit box system, a system for notating events that happen over a time period.
- Tokai University Boarding School in Denmark
- Ryan Tubridy, Irish television and radio presenter.
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