Schist in the context of Graphite

Saana (Northern Sami: Sána) is a fell in Enontekiö, Finland. Saana's summit lies 1,029 metres (3,376 ft) above sea level and 556 m (1,824 ft) above the adjacent Kilpisjärvi lake. Geologically it is part of the Scandinavian Mountains, and is made of the same kinds of schist and gneiss rock. The peak is a popular destination for hikers and backpackers because of the sweeping views offered at the summit.

In December 2017, in celebration of the 100th anniversary of Finland's independence, Saana was lit with blue light. The area illuminated covered roughly 2.5 million square meters, making it the largest art illumination in the world.

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 billiard tables. 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 Aspromonte is a mountain massif in the Metropolitan City of Reggio Calabria (Calabria, southern Italy). In Italian aspro means "rough" whereas in Greek it means "white" (Άσπρος), therefore the name literally translates to either "rough mountain" or "white mountain". It overlooks the Strait of Messina, being limited by the Ionian and Tyrrhenian Seas and by the Pietrace river. The highest peak is Montalto (1,955 m (6,414 ft)). The constituting rocks are mostly gneiss, and mica schists, which form characteristic overlapping terraces. The massif is part of the Aspromonte National Park.

In the short coastal strip citrus fruits, vine and olives are grown, while at high elevations the vegetation is composed mostly by oak and holm oak under 1,000 m (3,300 ft), and by pine, Sicilian fir and beech over it. Olive trees grow in abundance. Also, the rare bergamot, the lemony-yellow fruit used in perfumes and flavouring for Earl Grey tea, only grows in the southern Aspromonte.

Micas (/ˈmaɪkəz/ MY-kəz) are a group of silicate minerals whose outstanding physical characteristic is that individual mica crystals can easily be split into fragile elastic plates. This characteristic is described as perfect basal cleavage. Mica is common in igneous and metamorphic rock and is occasionally found as small flakes in sedimentary rock. It is particularly prominent in many granites, pegmatites, and schists, and "books" (large individual crystals) of mica several feet across have been found in some pegmatites.

Micas are used in products such as drywalls, paints, and fillers, especially in parts for automobiles, roofing, and in electronics. The mineral is used in cosmetics and food to add "shimmer" or "frost".

Soapstone (also known as steatite or soaprock) is a talc-schist, which is a type of metamorphic rock. It is composed largely of the magnesium-rich mineral talc. It is produced by dynamothermal metamorphism and metasomatism, which occur in subduction zones, changing rocks by heat and pressure, with influx of fluids but without melting. It has been a carving medium for thousands of years.

Foliation in geology refers to repetitive layering in metamorphic rocks. Each layer can be as thin as a sheet of paper, or over a meter in thickness. The word comes from the Latin folium, meaning "leaf", and refers to the sheet-like planar structure. It is caused by shearing forces (pressures pushing different sections of the rock in different directions), or differential pressure (higher pressure from one direction than in others). The layers form parallel to the direction of the shear, or perpendicular to the direction of higher pressure. Nonfoliated metamorphic rocks are typically formed in the absence of significant differential pressure or shear. Foliation is common in rocks affected by the regional metamorphic compression typical of areas of mountain belt formation (orogenic belts).

More technically, foliation is any penetrative planar fabric present in metamorphic rocks. Rocks exhibiting foliation include the standard sequence formed by the prograde metamorphism of mudrocks; slate, phyllite, schist and gneiss. The slatey cleavage typical of slate is due to the preferred orientation of microscopic phyllosilicate crystals. In gneiss, the foliation is more typically represented by compositional banding due to segregation of mineral phases. Foliated rock is also known as S-tectonite in sheared rock masses.

Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of 150 °C (300 °F), and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface.

Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic temperatures, pressures, and rate at which they take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing pressure and temperature conditions is known as prograde metamorphism, while decreasing temperature and pressure characterize retrograde metamorphism.

The Wicklow Mountains (Irish: Sléibhte Chill Mhantáin, archaic: Cualu) form the largest continuous upland area in Ireland. They occupy the whole centre of County Wicklow and stretch outside its borders into the counties of Dublin, Wexford and Carlow. Where the mountains extend into County Dublin, they are known locally as the Dublin Mountains (Sléibhte Bhaile Átha Cliath). The highest peak is Lugnaquilla at 925 metres (3,035 feet).

The mountains are primarily composed of granite surrounded by an envelope of mica-schist and much older rocks such as quartzite. They were pushed up during the Caledonian orogeny at the start of the Devonian period and form part of the Leinster Chain, the largest continuous area of granite in Ireland and Britain. The mountains owe much of their present topography to the effects of the last ice age, which deepened the glens and created corrie and ribbon lakes. Copper and lead have been the main metals mined in the mountains and a brief gold rush occurred in the 18th century.Several major river systems have their source in the mountains, such as the Liffey, Dargle, Slaney and Avoca rivers. Powerscourt Waterfall is the second tallest in Ireland at 121 metres (397 feet). A number of these rivers have been harnessed to create reservoirs for drinking water for Dublin and its surroundings.

Cleavage, in structural geology and petrology, describes a type of planar rock feature that develops as a result of deformation and metamorphism. The degree of deformation and metamorphism along with rock type determines the kind of cleavage feature that develops. Generally, these structures are formed in fine grained rocks composed of minerals affected by pressure solution.

Cleavage is a type of rock foliation, a fabric element that describes the way planar features develop in a rock. Foliation is separated into two groups: primary and secondary. Primary deals with igneous and sedimentary rocks, while secondary deals with rocks that undergo metamorphism as a result of deformation. Cleavage is a type of secondary foliation associated with fine grained rocks. For coarser grained rocks, schistosity is used to describe secondary foliation.

The Cordillera Central (English: Central Ranges) is the highest of the three branches of the Colombian Andes. The range extends from south to north dividing from the Colombian Massif in Cauca Department to the Serranía de San Lucas in Bolivar Departments. The highest peak is Nevado del Huila at 5,364 m (17,598 ft).

Significant graphite resources exists in Cordillera Central in the form of graphite-bearing schists.

Marcus Garvey Park (formerly and also named Mount Morris Park) is a 20.16-acre (81,600 m) park on the border between the Harlem and East Harlem neighborhoods of Manhattan, New York City. The park, centered on a massive and steep outcropping of schist, interrupts the flow of Fifth Avenue traffic, which is routed around the park via Mount Morris Park West. The park is also bounded by 120th Street to the south, 124th Street to the north, and Madison Avenue to the east.

Created in 1840, the park was originally named for Robert Morris, then the mayor of New York City. It was renamed for black activist and businessman Marcus Garvey in 1973. Marcus Garvey Park contains flat lawns and playing fields surrounding the schist outcropping, as well as the Harlem Fire Watchtower, a New York City-designated landmark. It is operated and maintained by the New York City Department of Parks and Recreation. The park was listed on the National Register of Historic Places in 2025.

A clapper bridge is an ancient form of bridge found on the moors of the English West Country (Bodmin Moor, Dartmoor and Exmoor) and in other upland areas of the United Kingdom including Snowdonia and Anglesey, Cumbria, Derbyshire, Yorkshire, Lancashire, and in northern Wester Rossand north-west Sutherland in Scotland. It is formed by large flat slabs of stone, often granite or schist. These can be supported on stone piers across rivers, or rest on the banks of streams.

A porphyroblast is a large mineral crystal in a metamorphic rock which has grown within the finer grained matrix. Porphyroblasts are commonly euhedral crystals, but can also be partly to completely irregular in shape.

The most common porphyroblasts in metapelites (metamorphosed mudstones and siltstones) are garnets and staurolites, which stand out in well-foliated metapelites (such as schists) against the platy mica matrix.

Amenemhat III (Ancient Egyptian: Ỉmn-m-hꜣt meaning 'Amun is at the forefront'), also known as Amenemhet III, was a pharaoh of ancient Egypt and the sixth king of the Twelfth Dynasty of the Middle Kingdom. He was elevated to throne as co-regent by his father Senusret III, with whom he shared the throne as the active king for twenty years. During his reign, Egypt attained its cultural and economic zenith of the Middle Kingdom.

The aggressive military and domestic policies of Senusret III, which re-subjugated Nubia and wrested power from the nomarchs, allowed Amenemhat III to inherit a stable and peaceful Egypt. He directed his efforts towards an extensive building program with particular focus on Faiyum. Here he dedicated a temple to Sobek, a chapel to Renenutet, erected two colossal statues of himself in Biahmu, and contributed to excavation of Lake Moeris. He built for himself two pyramids at Dahshur and Hawara, becoming the first pharaoh since Sneferu in the Fourth Dynasty to build more than one. Near to his Hawara pyramid is a pyramid for his daughter Neferuptah. To acquire resources for the building program, Amenemhat III exploited the quarries of Egypt and the Sinai for turquoise and copper. Other exploited sites includes the schist quarries at Wadi Hammamat, amethyst from Wadi el-Hudi, fine limestone from Tura, alabaster from Hatnub, red granite from Aswan, and diorite from Nubia. A large corpus of inscriptions attest to the activities at these sites, particularly at Serabit el-Khadim. There is scant evidence of military expeditions during his reign, though a small one is attested at Kumma in his ninth regnal year. He also sent a handful of expeditions to Punt.

Phyllite (/ˈfɪlaɪt/ FIL-yte) is a type of foliated metamorphic rock formed 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. Among foliated metamorphic rocks, it represents a gradation in the degree of metamorphism between slate and schist.

Greenschists are metamorphic rocks that formed under the lowest temperatures and pressures usually produced by regional metamorphism, typically 300–450 °C (570–840 °F) and 2–10 kilobars (29,000–145,000 psi). Greenschists commonly have an abundance of green minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine. The platiness gives the rock schistosity (a tendency to split into layers). Other common minerals include quartz, orthoclase, talc, carbonate minerals and amphibole (actinolite).

Greenschist is a general field petrologic term for metamorphic or altered mafic volcanic rock. In Europe, the term prasinite is sometimes used. A greenstone is sometimes a greenschist but can also be rock types without any schistosity, especially metabasalt (spilite). However, basalts may remain quite black if primary pyroxene does not revert to chlorite or actinolite. To qualify for the name, a rock must also exhibit schistosity or some foliation or layering. The rock is derived from basalt, gabbro or similar rocks containing sodium-rich plagioclase feldspar, chlorite, epidote and quartz.