Another Weird Rock! But I Think I Know What This One Is!
 
When I moved my dad's very large collection of rocks to my property, I also moved the rock saw that my dad designed and built. Most of my childhood home had to be left behind, but not the rocks and not my dad's rock saw. There was only one problem. I didn't have any place to put the rock saw.
 
My good friend Alan to the rescue! He had garage space to spare. I just gave the saw to him. Free of charge. I only asked for one thing. I asked if he would cut rocks for me with my dad's saw. Alan said he would be pleased to do it. (Quite a few of Alan's other friends are now benefiting from the saw too.)
 
I generally only ask Alan  to cut rocks that I just can't figure out from the outside. This is one of those rocks. Other than knowing that it was good, solid agate -- I just couldn't figure this one out. But now that I can see the interior in one of the smooth cuts (My dad's old saw still does a great job!), I think I know.
 
It's the strangest "Utah Agatized Barite" I have ever seen.
 
Most Utah Barites are black with dramatic streaks of red where agate has replaced the original barium sulfate crystal. See my blog about Utah Agatized Barite: O. G. Wottafossil !!! (I usually have a few normal pieces listed for sale too. If you can't find one listed, or if you want something different, send me a message!) A few pieces have a few streaks of green rock in them. This one is mostly green.
 
Compounding the identification problem, the crystal tops that are so clear and obvious on some Utah barites are just bumps on the surface of this one and the rays from the center to the outside of the nodule that are the fossilized replacement of barium sulfate crystals are almost completely missing. They're partially present on one side and provide the clearest evidence that this is an agatized barite. See the pictures.
 
For the most part, then, this Utah Agatized Barite is a "cast" where only the outer shape of the original is preserved and the interior is all agate. Most casts are solid and crack free because the agate is continuous and more uniform. This one is too.
 
(ps ... Yes, the weight is as accurate as the scale can weigh something. I DID tare the scale to remove the weight of the small agate from the reading.)
 
Few Utah Agatized Barites can be found for sale on the web anyway. I doubt that you're ever going to see another one like this.
 
If you're interested in more rocks, you can save a few dollars by combining several items into the same custom order.  There will be just one shipping charge in a cost-effective USPS flat rate padded envelope. Send a message before ordering so we can set up the order. I do a lot of my business through custom orders and I love to work with people to get just the right rocks you're looking for.