Compared to the US, Canadian thundereggs are scarce and rarely offered for sale. Thunder eggs. The specimens I have and have heard of are all from British Colombia and … Nowy Kosciol "Wrzynka" & Owczarnia Hills, Lower Silesia, Poland (18.03.2017) Warm Springs Indian Reservation "The Rolling Hills Thunderegg Bed", Oregon, USA (18.03.2017) 5 out of 5 stars (1,883) $ 49.95. Thunder Eggs Richardsons Thundereggs Rough Uncut Lapidary Unopened Rough rock agate filled Oregon ranch FUN! Sea Fossils Display Specimens 13 Lbs Lot of Two #464. As the volcanic lava cooled, trapped steam and other gases formed an expanding bubble. rhyolites). Thunder Egg, also know as Amulet Stone, are mainly spherical-shaped stones that were formed when silica rich minerals replaced gases trapped within an outer shell of cooled molten volcanic lava. The Baker family contains one of the most famous thunderegg locations of all - the Baker Egg Mine - though there are other close relations. Thunder eggs are spherical objects which form in some types of silica-rich volcanic rocks (e.g. A Thunder Egg is a nodule-like or geode-like geological structure with some adhering silicified host rock comprising the outer zone of the thunder egg. 5 out of 5 stars (76) $ 14.00 FREE shipping Favorite Add to GB-28 Large Whole Thunder Eggs Uncut Box of x8 rocksinmypockets. A thunderegg (or thunder egg) is a nodule-like rock, similar to a filled geode, that is formed within rhyolitic volcanic ash layers. shipping: + $8.00 shipping . shipping: + $8.00 shipping . Thunder Eggs Two Large 3.6 lbs #853. $19.95. To generalize, the most familiar New Mexico stones fall into two immediate types - the Baker family and the 'New Mexico Browns'. Thunder Eggs Three large halves 7.35 lbs #856. shipping: + $8.00 shipping . Thundereggs from Canada. $29.95. Verde Antique Classic Decorative Stone CA 2 … $29.95. Going by the info of one of the sellers, the eggs were mined in the 60s and the bed is located near the Warm Springs Indian Reservation - on the Deschutes river, north of Madras. Thundereggs are rough spheres, most about the size of a baseball—though they can range from a little more than a centimeter to over a meter across. And get notified about sales and new products. Thunder Eggs are usually filled with agate, chalcedony, opal, and/or visibly crystalline quartz. Silica and feldspar minerals often crystallise around the bubble or grow crystal fibres which radiate outwards from the its centre. RockGazer. Thundereggs from the McDermitt Area, Oregon/Nevada, USA. They often have star-like internal patterns where the outer shell cracked open to … These stones have their own characteristics, including some very distinct groups. McDermitt - Boxcar #1: McDermitt - Boxcar #2 Sign up for our newsletter. Sign up for our newsletter. And get notified about sales and new products. Beautiful Green and Red Frieda Thunderegg - Double and Brecciated.