Email Me .
Dwarves' Earth Treasures Museum:
Black Agate Thundereggs
Wiley Well District, south of Bythe, California
 .
   The Black Agate Mine within the area of Black Hills, is one of the latest site to be discovered and and then mined by Paul "GeodeKid" Calburn. The thundereggs from the mine are similar to those found at the original Black Hills digging to the east. The strange thing about the Black Agate thundereggs is that they are often connected to each other by narrow rhyolitic chains just like "trains". The agates in the thundereggs are typically "waterline" with white, gray and black colors and some has been found with tubes or "eyes" structures. The site also containe some best example of "Tillage agates" that preseves the evidence of tectonic activities. The "Tillage" name refers to how the faulting interrupted the seasonal (yes seasonal as in wet/dry periods!) genesis of the agates, resulting younger/upper bands being not parallel to the older/lower bands.

YOU CAN CLICK ON THE PICTURES TO SEE LARGER PICTURES

Rough Appearance: Rough thundereggs that looks more like concertions than thundereggs, some were connected to each other like trains.
Typically contain black to whtie waterline agates, sometimes with tubes/"eyes" structures.
"Tillage Agate" 
younger flat bands, not parallel to older/ower bands		 Also "Tillage Agate"

With calcite crystal at the bottom.