Schist (/ ˈʃɪst / SHIST) is a medium-grained metamorphic rock showing pronounced schistosity (named for the rock). This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates.

The artifact is made of schist (a term previously used in Egyptology for weakly metamorphic siltstone [2]), and is in the shape of a shallow bowl with a diameter of 61 centimetres (24 in) and a maximum height of 10.6 cm (4.2 in).

The schists are a group of metamorphic rocks which have lamellar (plate-like) minerals, such as micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains so that a form called quartz schist is produced.

What is Schist? Schist is a foliated metamorphic rock made up of plate-shaped mineral grains that are large enough to see with an unaided eye. It usually forms on a continental side of a convergent plate boundary where sedimentary rocks, such as shales and mudstones, have been subjected to compressive forces, heat, and chemical activity.

2023年8月26日 · Schist is a type of metamorphic rock characterized by its foliated texture, which means it possesses distinct layers or bands of minerals that have undergone significant physical and chemical changes due to heat, pressure, and other geological processes.

Schist, megascopically crystalline rock that has a highly developed schistosity, or tendency to split into layers. Banding (foliation) is typically poorly developed or absent. Most schists are composed largely of platy minerals such as muscovite, chlorite, talc, sericite, biotite, and graphite;

Discover the properties, formation, and uses of schist, a foliated metamorphic rock rich in mica, garnet, and other minerals. Learn about its types, sourcing locations, and how to care for schist in this detailed guide.

The Haast Schist, which contains both the Alpine and Otago Schist, is a metamorphic unit in the South Island of New Zealand. It extends from Central Otago, along the eastern side of the Alpine Fault to Cook Strait. [1]

2025年1月21日 · schist (countable and uncountable, plural schists) Any of a variety of coarse-grained crystalline metamorphic rocks with a foliated structure that allows easy division into slabs or slates.

2023年2月24日 · De naam schist betekent letterlijk gescheurde steen. Door de foliatie ontstaat oplijning van nl:mica 's als nl:muscoviet, nl:biotiet of nl:chloriet (groenschist).