Roger’s Geode Collection
Wednesday, August 13th, 2008This is Roger’s geode collection that he has amassed over the last couple of visits to Missouri.
Well, three geodes and one bit of pasta for scale.
Geodes are an interesting bit of geological product in that they are effectively little pockets — bubbles really — of gas and minerals that form
The geode fragment in the back was likely a part of a much much larger geode. Size of a basketball kind of large. It has an interesting crystalline structure not apparent in the photo.
The softball thing at the left is the most perfectly round geode I have ever seen. It has fossil inclusions in the surface, but is otherwise just perfectly round. Might be interesting to slice it open, but it is just so… perfectly round and magnificent as is.
The last geode is kinda small. Really really small. I had no idea geodes could be that small.
But, as Roger often teaches me, discovering small is often just a matter of paying attention.
It is actually quite a spectacular little bit of crystalline geological product.
The image at the right is a close-up of that really tiny geode.
Quite the surprisingly complex bit of crystalline structure in a very, very small package!
Not surprisingly, this image was shot with the Canon 65mm 1-5x macro lens.
To take this kind of picture with this lens requires a tripod, a stand for the subject and a really good light source.
All of which I happened to have, though some of which was a bit hacked. Click through for details.
























