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Thundereggs(Lithophysae)
   The "thunderegg" name was given to the spherical lithophysae nodules by American Natives with a belief that they were leftovers from the thunderous war between the mythological Gods. The name "thunderegg" is becoming widely used to describe the nodules containing the geometrically cavities between the rhyolitic shells, and they are found in any rhyolitic bodies (obsidian, perlite, rhyolite and tuffs) which most have been completely decomposed into clay beds.
Updated November 2015

What is "Thunderegg" and how did they form?

Thundereggs of New Mexico:

-Baker & Butler Ranches at Hermanas:
-- Baker Eggs, Updated November 2015
-- Blue Star Updated March 2012
-- Prospect Pits of Bulter Hill, Updated July 2012
-- "Lindburg" Thundereggs Updated March 2012
-- Pastel Thundereggs Updated November 2015
-- JA's Little Wash Updated April 2012
-- Orange Star Site Updated April 2012
-- Tavenier Thundereggs Updated April 2012
-- "Too Big Thundereggs!" Updated November 2015
-- Torpedo Beds Updated April 2012
-- "Orange Core" Agate Cores from Hermanas, New Mexico
-Little Florida Mountains, East of Deming:

-- Eggzilla Thundereggs, Updated April 2013
-- Dead Tree Thundereggs
Updated March 2012
-- LavaCap Thundereggs (Sugar Bowl #4),  Updated November 2015
-- Over the Hill Thundereggs, Updated April 2013
-- Sky Blue Thundereggs Updated November 2015
-- Neveragain Thundereggs Updated May 2012
-- Rockhound Park Thundereggs Updated May 2012
-- Sugar Bowl #1 Mine Updated April 2012
-- Sugar Bowl #2 Mine Updated April 2012
-- BrickRed/Black Queen (Sugar Bowl #3) Updated March 2012

  -Other NM Locations:
-- Bioconoid Mine from Radium Springs Updated January 2012
-- Bear Mountain near Silver City Updated April 2012
-- Honey Onyx Thundereggs from Radium Springs, Updated January 2012
-- Pinky Wright Thundereggs near Cotton City, NM, Updated November 2015

Thundereggs of Oregon:
-- Buchanan Updated November 2015
-- Calico Mountains along Oregon/Nevada Border Updated February 2012
-- Calopooia River, Updated November 2015
-- Desolation Canyon Updated February 2012
-- Donnybrook Updated February 2012
-- Fallen Tree  Updated February 2012
-- Fred Bed Updated February 2012
-- Frieda Bed, Updated November 2015
-- Friend Ranch
Updated March 2012
-- H 2 L (Josephine Beds) Updated February 2012
-- Jeremy Beds Updated February 2012
-- Killer Green Updated February 2012
-- Lucky Strike & Valley View
Updated November 2015
-- McDermitt Beds along Oregon/Nevada Border Updated November 2015
-- Mill Creek/Steins Pillar Updated February 2012
-- Queens Point Updated February 2012
-- Radford Mine Updated February 2012
-- Richardson Ranch(Priday) Beds,
Updated November 2015
-- Sandy Beds Updated February 2012
-- Secret Ridge (Harney Rim) Updated February 2012
-- Star Mountain Sagenite Updated February 2012
-- Succor Creek Updated February 2012
-- Tufa Beds Updated February 2012
-- White Rock Springs, Updated April 2015
-- White Springs Fir Updated February 2012
-- Yellow Jacket Updated February 2012

-Reference:  History of Thunderegg Collecting in Oregon by George Williams booklet

 Thundereggs From Other States:

-- Alaska: Talkeetna Thundereggs, Updated April 2015
-- Arizona: Muggins Mountains, Updated November 2015
-- California: Eagle Mountain Updated November 2015
-- California: Lead Pipe Springs of China Lake Updated November 2015
-- California: Wiley Well District, Updated November 2015
              (Includes Hauser Beds, Potato Patches and other beds)
-- Idaho: Bruneau Jaspers, Updated February 2012
-- Minnesota: Lake Superior Thundereggs, Update April 2013

-- Nevada: Black Desert Eggs, Updated December 2012

-- Nevada: Contact Eggs, Updated February 2012
-- Nevada: Other Thundereggs of Nevada, Updated April 2013

-- Texas: Mt. Chinco, Updated February 2012
-- Utah: Dugway "Geodes", Updated February 2012
-- Washington: Little Naches River, Updated February 2012

Thundereggs of Australia
-- Agate Creek, Updated November 2015
-- Couchy Creek, Updated December 2011
-- Mt. Hay, Updated November 2015
-- Mt. Jerusalem, Updated December 2011
-- Mt. Tamborine, Updated December 2011

Thundereggs of Europe:
-- France:  Frejus Thundereggs Updated January 2012
-- Germany: Spießberg, Thuringia Updated January 2012
-- Germany: Et. Egidien & Hohenstein Updated January 2012
-- Germany: Teufelskanzel (Devil's Puplit), Oberthal, Germany Updated February 2014
-- Germany: Other Thundereggs of Germany, Updated February 2014
-- Poland: Polish Thundereggs Updated January 2012
-- Romania: Romania Thundereggs Updated May 2012
-- Slovakia Republic: Bysta Thundereggs Updated January 2012
-- Turkey: Chubuk Agates & Thundereggs Updated February 2014

Thundereggs of Asia:
-- Indonesia: Mushroom Agate Cores, Updated November 2012
-- Japan: Japanese Thundereggs Updated January 2012
-- Kazakhstan: Thundereggs of Kazakhstan Updated January 2012

Thundereggs of Mexico:
-- Del Ray Thundereggs (mislabeled as Ascension Thundereggs ) Updated January 2012
-- Cold Mountain "Jasper" Thundereggs, Updated November 2015
-- Coyamo Thundereggs   Updated January 2012
-- Janos (Rainbow) Agates  Updated January 2012
-- Las Choyas & Other Mexican "Coconuts" Updated November 2015
-- Mariposa (Butterfly) Jasper Thundereggs Updated January 2012
-- Mesquite Creek Thundereggs Updated November 2015
-- Red Hot (Berrando) Agates 
Updated January 2012
-- "Sagenite" Thundereggs, Updated November 2015
-- SnowBall / Surprise Agates Updated April 2012
-- Trancas "Geodes" Updated February 2012
-- Other Thundereggs of Mexico Updated November 2015

Thundereggs of South America:
-- Ayaleft Thundereggs, Updated April 2012
-- Chubut Thundereggs (several locations). Updated November 2015
-- Rio Colorado Thundereggs (Condor Eggs), Updated December 2011

 Thundereggs from Other Locations:

-- Canada: Mont Lyall, Quebec, Updated February 2012
-- Africa, Madagascar: "Ocean Jasper",
Updated October 2013
 -- Wisconsin(USA): Fluorite Thundereggs, Updated April 2012
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