Locally called as "Dugway Geodes", the Dugway
Thundereggs are one of well known and locations in the western states and
they have been dug for many decades. Coming from the clay layers (decomposed
pertile lava beds), the thundereggs are generally large sized geode-types
with sugar-like quartz crystals lining the blue to lavendar agate rims.
It is rare to find the thunderggs containg solid and well banded agates
and purple color is supposed to be a rare color. It is not known how much
percentage of the Dugway thundereggs contain solid agate or geodes since
it's common for them to focus only on the hollow thundereggs that feel
quite light for their sizes while heavier thundereggs with solid agates
may have been ignored.
Updated October 2010
Larger pictures of any interested specimens can
be provided at request
2009yDUGn015-$30
