Posts Tagged With: Coso Artifact

The Coso Artifact! Now for your Ears!

The Archaeology Fantasies Podcast episode 10 is live, (so I might have skipped #9 by accident…oops)


This episode Ken and I chew over the Coso Artifact. It’s a fun episode since, as per the blog post on this topic, we already know what it really is. We still look over the origin story and the impact this little Oopart has today.

On an important note, The Archaeology Podcast Network is looking for people willing donate time to edit all of our wonderful and informative podcasts, including this one. If you’ve got the know-how to edit a .wav file and create a cohesive show out of our run-on sentences, drop Chris an email at and make sure to put “Show Editing” in the subject line.


Want more on this topic? Go to ArchyFantasies Podcasts.

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Categories: ArchyFantasies Podcasts, Weird Archaeology | Tags: , , , , | 6 Comments

Interesting things that have happened this week.

Firstly, we’ve records and ArcheoWebby has post the new podcast I’m going to be on. You can find it over at Random Acts of Science, aka Dig Tech. You can find the podcast here. We talk a lot about looters and public archaeology with Chirs, Doug, and myself. Personally I had a blast making this podcast, and I can’t wait to do more. 

Also check out Doug’s blog over at Doug’s Archaeology and Chris’ blog over at Random Acts of Science/ DigTech

Secondly, HOLY CRAP my blog blew up! Srly, 750+ views today and still counting! I’m not sure who gave me the bump, but thanks a bunch!

Thirdly, Since I was checking my exploding views today I wanted to see what people were looking at, and apparently everyone is fascinated with the Coso Artifact. I’m glad everyone enjoy’s my write up on the little Spark-plug that could. It was fun to write about, and yah, it’s cool how it formed and all that. Feel free to lave me questions about it if you have any.

So that’s pretty much it for the week. I needed the down time to catch up with some school work and all. But, the  next week we’ll be back on schedule  no worries. Till then go listen to my awesome  podcast and rate us. Oh, and thanks for visiting!

Categories: Uncategorized | Tags: , , , , , | 3 Comments

The 10 Most Not-So-Puzzling Ancient Artifacts: Out-Of-Place Metal Objects

As we move though The 10 Most Puzzling Ancient Artifacts list, we come to a couple “catch-all” categories. The first is Out-Of-Place Metal Objects, which is a subcategory of what are called OOPArts, or Out-Of-Place Artifacts.

This really is a huge catch-all and includes many objects that are both real (in that they exist, but are not necessarily what they are claimed to be) and those that are fake. There are really too many for me to address in one post, and I will be getting back to them individually at a later point. I get lots of questions about these little tid-bits of metal, and every time I investigate them, they turn out to be little more than urban legends, if they exist at all.

I do want to point out here, that the term OOPArt is not professional jargon. I would wager if you walked up to the average archaeologist and asked them about OOPArts, they’d have no clue what you were talking about, and after you explained it, they would try not to laugh. It is however a big part of pseudoscience and should be a clue that whoever you are speaking with is not an expert in the field.

Now, we’ve covered a few of the OOPArts already, The Antikythera Mechanism, the Klerksdorp  Spheres, and recently the Coso Artifact. Of just these three, only the Mechanism is a real artifact, and it’s not a puzzle as to what it is. The Spheres aren’t even metal, and the Coso Artifact is a corroded spark-plug. This appears to be the reality for most of the OOPArts, that they are either items that are thought to be metal but aren’t, are metal but are being claimed to be older than they are, or simply made up.

As I said before, I will be going over these individualy, but right now I want to make sure that we all understand that OOPArts are mostly made up, never what they claim, and rarely ancient.

Categories: 10 Most Puzzling Ancient Artifacts, Out-Of-Place Artifacts, Weird Archaeology | Tags: , , , , , , | 3 Comments

The 10 Most Not-So-Puzzling Ancient Artifacts: The Coso Artifact

The next item on the 10 Most Puzzling Ancient Artifacts list is the Coso Artifact…or as it should be more correctly named; The 1920’s era Spark Plug that got confused for a Geode. Which if you know anything about how metal corrodes, debunks this entirely. It also takes all the fun out of writing a big’ol blog post about this, so let’s start at the beginning shall we?

Radiograph of the Coso Artifact

In February of 1961, Wallace Lane, Virginia Maxey and Mike Mikesell, who were looking for minerals to sell in their shop in Olancha, California discovered a specimen that looked rather different than their normal fair. The outer layer of the specimen was encrusted with fossil shells and their fragments. In addition to shells, the discoverers noticed two nonmagnetic metallic objects in the crust, resembling a nail and a washer.

The next day, in his workshop at their store, Mike Mikesell claims to have ruined a nearly new diamond saw blade while cutting the specimen in half. Inside Mikesell discovered a perfectly circular section of very hard, white material that appeared to be porcelain. In the center of the porcelain cylinder was a 2-millimeter shaft of bright metal which responded to a magnet. There are the only hard facts we have on the origin of the Artifact. Beyond this, things start to get hazy, and red flags begin to pop up.

We don’t know what all was done to examine the Artifact early on. We know that Virginia Maxey claims that she took the “geode” to a geologist who dated the artifact to be about 500,000  years old. We don’t know who this geologist is, what he did to examine the Artifact, what his real conclusions were, or if he really existed.  Whoever he is, I question his expertise, because this is object is obviously not a geode.

You can see the concretions growth around the spark-plug.

Remember the Klerksdorp Spheres that I went over in an earlier post? This is the same kind of thing. Only instead of making a sand candle, this is more like growing salt crystals. Think back to when you were a kid and for a science project you made a supersaturated liquid, added a string, and watched crystals grow.

Ok, never did that one? Go to you kitchen, boil about a cup of water, take a spoon and quickly start adding either salt or sugar, stirring slowly so you don’t over cool the water, until the salt/sugar refuse to dissolve completely anymore. This might take a bit, and it will take a good deal of salt/sugar. Next take a thin fibrous string, soak it in the liquid and then hang it up so that one end is still in the liquid. Now wait, for a while, like a day or better. You’ll notice that crystals start forming on the string as the liquid evaporates, the more you were able to dissolve into the liquid, the bigger your crystals will grow.

Click through for better directions

Now, this isn’t a perfect analogy, but it is pretty much what happens when you leave ferric (iron) metals in damp ground for long periods of time. The water begins to oxidize the metal, the oxidation acts like glue sticking things too it (like the sand in the sand candle), and the larger the bit of metal, the bigger the concretion will grow. Just like in the example, you need something for the concretions to adhere to, like the string, only here it’s our ferric object which also causes the oxidation.

This is a common occurrence, especially in historic archaeology, where we find nails, hinges, door knobs, handles, files, etc by the bucket full. The first time you see one, you think it’s some kind of rusty potato, but it’s obviously metal of some kind. It’s hard to identify these objects, and you basically learn from experience to tell what they are, when you can. This concretion is also common in underwater archaeology, but underwater archaeologists have sophisticated ways of removing the buildup without damaging the artifact underneath. You can go watch the process in action at the Indianapolis Children’s Museum right now as they clean a cannon recovered from a sunken ship.

Quick recap.

So far we have an unidentified metal and porcelain artifact recovered by some rock-hounds. They don’t know what it is so they take it to a mysterious, unnamed geologist who somehow dates it to being 500,000 years old, despite the oxidation that the geologist should have noticed.

To add to this, the Coso Artifact possesses no characteristics that would classify it as a geode [Stromberg 2000]. Geodes consists of a thin outer shell, composed of dense chalcedonic silica, and are filled with a layer of quartz crystals [Stromberg 2000]. The Coso Artifact not only has neither of these characteristics, but its outer shell is softer than a Geode [Stromberg 2000]. These are glaring differences that a geologist would have noticed.

Cut and Polished Geode

Identifying the artifact was actually a pretty simple feat and the story about it is rather funny…to me anyway, so instead of typing the whole thing out, I will simply quote form the article,  “The Coso Artifact: Mystery From the Depths of Time?”  by Pierre Stromberg and Paul Heinrich:

“To help us to learn more about spark-plug technology of a century ago, we enlisted the help of the Spark Plug Collectors of America (SPCA). We sent letters to four different spark plug collectors describing the Coso Artifact, including Calais’s X-rays of the object in question. We expected the SPCA to provide some vague hints or no information at all about the artifact. The actual answers were stunning.

On September 9, 1999, Chad Windham, President of the SPCA, called Pierre Stromberg. Windham initially suspected that Stromberg was a fellow spark plug collector, writing incognito, with the motive of hoaxing him. His fears were compounded by the fact that there is an actual line of spark plugs named “Stromberg”. Though Stromberg repeatedly assured Windham that his intentions were purely for research, he was puzzled why Windham was so suspicious and asked him to explain. Windham replied that it was so obvious to him that the artifact was a contemporary spark plug, the letter had to be a hoax. “I knew what it was the moment I saw the X-rays,” Windham wrote.

Stromberg asked Windham if he could identify the particular make of the spark plug. Windham replied he was certain that it was a 1920s-era Champion spark plug. Later, Windham sent 2 identical spark plugs for comparison. Ten days after Windham’s telephone call, Bill Bond, founder of the SPCA and curator of a private museum of spark plugs containing more than 2000 specimens, called Stromberg. Bond said he thought he knew the identity of the Coso Artifact: “A 1920s Champion spark plug.” Spark plug collectors Mike Healy and Jeff Bartheld (Vice President of the SPCA) also concurred with Bond’s and Windham’s assessment about the spark plug. To date, there has been no dissent among the spark plug collectors as to the identity of the Coso Artifact. “

So, a definitive ID, and no decent among experts on the subject. We know the Coso Artifact wasn’t a Geode and that it is a 1920’s spark plug. Now what?

Now we have to deal with those who ignore facts in order to pursue their own belief. Included in this group of people are, of course, the Ancient Alien folks, who claim that the Artifact is evidence of early contact with aliens who’s space craft apparently broke down and then left spare parts behind. Also in this group are the Young Earth Creationists who seem to think the Artifact somehow proves a young earth…by being dated at 500,000 years old, and ignoring the fact that simple math once again eludes them.

And so there you have it folks, The Coso Artifact aka The 1920’s era Spark Plug that got confused for a Geode. I won’t lie, I was a little disappointed with this one, but hey, they can’t all be winners right?

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“The Coso Artifact.” Bad Archaeology. Accessed July 9th 2012.

Stromberg, Pierre

2000. The Coso Artifact : Mystery from the Depths of Time. The Talk Origins Archives. Accessed July 9th 2012.

Stromberg, Pierre and Paul V Heinrich

2004 “The Coso Artifact: Mystery From the Depths of Time?” Reports of the National Center for Science Education. March–April 2004. Vol 24 Issue 2. Accessed July 9th 2012.

Categories: 10 Most Puzzling Ancient Artifacts, Ancient Astronauts, Creation Science and Intelligent Design, Weird Archaeology | Tags: , , , , , , | 17 Comments

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