- The Light Fantastic (allthetropes.org)
The second Discworld novel, from 1986. A direct sequel to The Colour of Magic, it opens with the Octavo changing the whole world to save Rincewind and Twoflower from falling off the Disc at the end of that book. From then on, they struggle to get back to Ankh-Morpork as there are power struggles in Unseen University and the world turtle heads inexorably towards a great red star that threatens to strip away the Discworld’s magical field.
- Moganite (Wikipedia)
Moganite is an oxide mineral with the chemical formula SiO2 (silicon dioxide) that was discovered in 1976. It was initially described as a new form of silica from specimens found in the Barranco de Medio Almud, in the municipality of Mogán on the island of Gran Canaria, in the Canary Islands (Spain), receiving in a later work the name derived from this locality. In 1994 the International Mineralogical Association decided to disapprove it as a valid mineral, since it was considered indistinguishable from quartz. Subsequent studies allowed the IMA to rectify it in 1999, accepting it as a mineral species. It has the same chemical composition as quartz, but a different crystal structure.