- Greenschist (Wikipedia)
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).
- Small Gods (Wikipedia)
Small Gods is the thirteenth of Terry Pratchett’s Discworld novels, published in 1992. It tells the origin of the god Om, and his relations with his prophet, the reformer Brutha. In the process, it satirises religious institutions, people, and practices, and the role of religion in political life.