Talk:Stone spheres of Costa Rica
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these spheres are the topic of a Discovery HD show.
[edit] Stone Spheres of Costa Rica Unrelated to Concretions and Megaspherulites
I removed the reference to Concretions, Martian spherules, Moeraki Boulders, and Moqui marbles because the artificial nature of the Stone spheres of Costa Rica is well known as documented in their Wikipedia page, the publications mentioned in its text, and the web pages in its external links section. Being man-made, they are completely unrelated in origin to stone spheres of natural origin, such as, (1.) concretions, i,e, either Martian spherules, Moeraki Boulders, or Moqui marbles and (2.) megaspherulites, i.e. the stone balls of Cerro Piedras Bola of Jalisco, Mexico. The stone spheres of Costa Rica are related to man-made stone balls such as lapidary spheres, stone round shot (cannonballs), and the Carved Stone Balls of Scotland and have nothing to do with spherical and semi-spherical objects of natural origin. Thus, the links to concretions, Moeraki Boulders, and Moqui Marbles lack any relevance to a discussion of the stone spheres of Costa Rica and only confuse the difference between natural and artificial stone spheres / stone balls in people's mind.