- Nephrite is a variety of the calcium, magnesium, and iron-rich amphibole minerals tremolite or actinolite (aggregates of which also make up one form of asbestos). The chemical formula for nephrite is Ca2(Mg, Fe)5Si8O22(OH)2. It is one of two different mineral species called jade. The other mineral species known as jade is jadeite, which is a variety of pyroxene. While nephrite jade possesses mainly grays and greens (and occasionally yellows, browns, black or whites), jadeite jade, which is rarer, can also contain blacks, reds, pinks and violets. Nephrite jade is an ornamental stone used in carvings, beads, or cabochon cut gemstones. Nephrite is also the official state mineral of Wyoming.
- Calvin Coolidge (allthetropes.org)
Sworn in by his father, a Justice of the Peace, late at night, on the Coolidge family bible, after hearing of Harding’s death, John Calvin Coolidge, Jr. (1872 – 1933) may have represented the real return to normalcy; one of his slogans was “Keep Cool With Coolidge.” He was popular in his day, but due to his lack of charisma he’s not remembered much now. Most people remember Prohibition and the rest of The Roaring Twenties instead. If they do remember him, it is for his legendarily taciturn temperament, which earned him the nickname “Silent Cal”. Like most old-fashioned New Englanders, he never used twenty words when one would do the trick, and never used ten words when a simple nod would suffice. This also translated to his philosophy of governance, which was to do as little as necessary, on the grounds that 90% of impending problems would solve themselves before they ever became serious (a philosophy that made him, reportedly, the favorite modern President of Ronald Reagan). Partially as a result of this hands-off philosophy, he has been described as being, historically, more relevant as a source of amusing anecdotes than as a president.