Treated gem, also called Treated Stone, genuine gem material whose colour has been artificially enhanced or produced to increase the value of the stone; staining, heat treatment, and irradiation are among the treatments used.
But Jerry Gault, above, a crabber from Florida who now lives in Beaufort, S.C., knows the value of fresh stone crab claws.
Rich dismantled the castle for the value of its stone, primarily between 1551 and 1575, and the castle, now thoroughly ruined, passed through Rich's descendants.
Hitcham's bequest had meanwhile become entangled in the law courts and work did not begin on the poorhouse until the late 1650s, by which time the internal buildings of castle were being broken up for the value of their stone; the chapel had been destroyed in this way by 1657.
Cutting adds about 40% to the value of rough stones.
"The value of the stones may not be great but the design is," Mr. Tiesenhausen said.
All this shows that mineral resources need not always be a curse.African producers are also keen to cut and polish their own diamonds, which adds 50% or so to the value of rough stones, and even move into the jewellery business.
-- Excerpt from "The Value of Higher Education Made Literal" THE STONE A wave of scientists and philosophers are working in the areas known as "embodied cognition" and "the extended mind".
When that day happens, 180 million miles away from home, in Gale Crater or elsewhere on the planet of Mars, for at least a moment, they might think back to their own simpler time when, on the shoreline of some body of water, they first learned the value of the perfect stone.
Just as styles and tastes change, so do the underlying value of stones and metals.
