Garnet, a hard, transparent or semi-transparent mineral occurring as crystals, as grains, or in irregular masses. Garnets are silicates in combination with iron, calcium, manganese, magnesium, aluminum, or chromium. Most of the gem garnets —pyrope, almandite, spessartite, andradite, uvarovite, and grossularite—are reddish in color, but some are greenish, yellowish, or white. The garnet is the birthstone for January and represents constancy. Common garnets are used as watch jewels (bearings), as abrasives, and in coating sandpaper.
The world of our far-future descendants may be as unrecognizable to us as our bustling, urbanized world would be to our bewildered ancient forefathers. Will energy drive many of those changes?
Ever since its discovery in 2000, a dinosaur fossil named Leonardo has held the interest of paleontologists the world over. A 3-D model of the animal even toured the world. So what's the big deal?