Tiger's eye is a yellow-brown, semiprecious chatoyant gemstone consisting of quartz with parallel veins of silicified altered crocidolite. The gems are usually cut en cabochon, meaning with a convex, rounded surface that is polished but unfaceted, in order to best display their chatoyancy. Notable sources of tiger's eye include the US, Canada, China, Brazil, Namibia, India and Burma. What is tiger iron?
Robert Louis Stevenson
Back in the day
The periodic table is a tabular display of the known chemical elements, first created by Dmitri Mendeleev, a Russian chemist. The elements are arranged in columns and rows according to increasing atomic number, or the number of protons in the nucleus of an atom, as well as the number of electrons in the neutral atom. There are eight groups of elements, plus a block of transition metals in the center of the table. How many elements currently appear on the periodic table?
Born on a day like today
GarcÃa MÃ¡rquez is a Colombian novelist, short-story writer, and journalist. Widely considered the greatest living Latin American master of narrative, he won the Nobel Prize in Literature in 1982. His two masterpieces, One Hundred Years of Solitude, and Love in the Time of Cholera, present his central themes of violence, solitude, and the overwhelming human need for love. The former work is considered the seminal text in what literary genre?