# The Crystal Skull of Lubaantum ([[Belize]]), a 7-inch-long skull cut from a single piece of clear quartz found among Mayan ruins in 1927. The artisan who fashioned it evidently cut the quartz ''against the axis of crystallization'', a feat no modern jeweler could possibly accomplish without shattering the quartz into fine dust. Moreover, even if the artisan could have accomplished the against-the-grain cut, he cannot have used any metal tools, because his work bears no scratch marks. Analysts have concluded that the production of this artifact would have required 300 man-hours using any conceivable modern method—again, ''if'' anyone could have cut the quartz against the grain without shattering it. (One must also wonder what sort of culture would see something as morbid as a skull as an article of jewelry, much less exert such technological effort to produce such an object.)<ref name=top10/> | # The Crystal Skull of Lubaantum ([[Belize]]), a 7-inch-long skull cut from a single piece of clear quartz found among Mayan ruins in 1927. The artisan who fashioned it evidently cut the quartz ''against the axis of crystallization'', a feat no modern jeweler could possibly accomplish without shattering the quartz into fine dust. Moreover, even if the artisan could have accomplished the against-the-grain cut, he cannot have used any metal tools, because his work bears no scratch marks. Analysts have concluded that the production of this artifact would have required 300 man-hours using any conceivable modern method—again, ''if'' anyone could have cut the quartz against the grain without shattering it. (One must also wonder what sort of culture would see something as morbid as a skull as an article of jewelry, much less exert such technological effort to produce such an object.)<ref name=top10/> |