Gemstone the stone such as color zoning (the uneven distribution of coloring within a gem) and asteria (star effects). The Greeks, for example, greatly valued asteria gemstones, which were regarded as powerful love charms, and Helen of Troy was known to have worn star-corundum. Aside from the diamond, the ruby, sapphire, emerald, pearl (not, strictly speaking, a gemstone), and opal have also been considered to be precious. Up to the discoveries of bulk amethyst in Brazil in the 19th century, amethyst was considered a "precious stone" as well, going back to ancient Greece. Even in the last century certain stones such
Gemstone Publishing was a compilation, edited by David Gerstein, of Disney cartoon story pages published from 1934 to 1944 in Good Housekeeping magazine. Gerstein later edited two Gemstone softcover books that were official tie-ins to the Walt Disney Treasures DVD collections: "Disney Comics: 75 Years of Innovation" (2006) and "Uncle Scrooge: A Little Something Special" (2008). Gemstone has also published reprints of EC Comics. Gemstone's "Comic Book Marketplace"-editor Russ Cochran had previously published (in 1973) a dozen reprints of EC titles including "Crypt of Terror", "Weird Science", "The Haunt of Fear", "The Vault of Horror", etc., before moving to Gladstone Publishing and