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Snowball Agates
Medonas dune field, Chihuahua Province, Mexico
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     They look like miniature version of "Mexican Coconuts" with Laguna agates in them. The range of colors and fine bandings in those agates can make them be confused as Laguna Agates. Like the Mexican Coconuts, I have came to believe that they may be actually the weathered agate cores of fully expanded thundereggs and the rhyolite shells still attached to the Trancas Geodes provided some good evidence on that idea. Althrough it is rare for me to encounter the "Snowball" agates, they are almost always small and appear to come in quite a wide range of colors. There is another type of agate that can be confused with Snowball Agates are pinkish Surprise Geodes which are usually hollow lined with agatized quartz & barite pseudomorphs and it is common to see Snowball agates be mixed with Surprise Agates because of their similar appearances. The possible difference would be that Snowball agates tend to show bluish agate on surface while the Surprise Geodes coming with pink to orange colors. Occasionally the "Snowball" rough with laguna-like agates have been cut and polished.

Updated October 2010, new specimen have 2010y in their code names..
Larger pictures of any interested specimens can be provided at request

2010ySWBn022-$25 2010ySWBn023-$25
or $40 for the pair
2010ySWBn024-$25 2010ySWBn025-$35