Cap Corse in the context of Communauté de communes

Bastia (UK: /ˈbæstjə, ˈbɑːs-/ BA(H)SS-tyə, US: /ˈbɑːstiə, ˈbæs-, bɑːˈstiːə/ BA(H)SS-tee-ə, bahss-TEE-; French: [bastja] , Italian: [baˈstiːa]; Corsican: Bastìa [baˈsti.a]) is a commune in the department of Haute-Corse, Corsica, France. It is located in the northeast of the island of Corsica at the base of Cap Corse. It also has the second-highest population of any commune on the island after Ajaccio and is the capital of the Bagnaja region and of the department.

Bastia is the principal port of the island and its principal commercial town and is known for its wines. The inhabitants of the commune are known as Bastiais or Bastiaises. The commune has been awarded three flowers by the National Council of Towns and Villages in Bloom in the Competition of cities and villages in Bloom.

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.