The chlorites are the group of phyllosilicate minerals common in low-grade metamorphic rocks and in altered igneous rocks.
Chlorite USGOV
Crystal structure of chlorite viewed along [100] (looking along the layers)
Chlorite structure viewed along [001] showing pseudohexagonal structure
Quartz crystal with chlorite inclusions from Minas Gerais, Brazil (size: 4.2 × 3.9 × 3.3 cm)
Greenschists are metamorphic rocks that formed under the lowest temperatures and pressures usually produced by regional metamorphism, typically 300–450 °C and 2–10 kilobars. Greenschists commonly have
Chlorite group
…Chlorite minerals do not contain the element chlorine. The name chlorite is from the Greek chloros (χλωρός), meaning "green", in reference to its color. Greenschist, formed by metamorphism of basalt or other low-silica volcanic rock, typically contains significant amounts of chlorite mineral (but not the chlorite…
Chlorite schist, a type of greenschist
Greenschist (prasinite) at Cap Corse in Corsica, France
Greenschist (epidote) from Itogon, Benguet, Philippines
Prasinite variety of greenschist (Mont-Cenis massif, French Alps)