found this in my loft in a box and really not sure what it is? its as heavy as a stone, i cnt see a crust on it so im thinking its not a meteorite. its all there but in three peices and its smooth with no sharp edges, its got small flakes of what looks like silver in it. if anyone can help please get back to me thank you
First of all, please delete your other question about this object.
If there are any photos therein that are not represented in this post, please add them.
The sculpted surface does indeed give it an appearance of a meteorite (thinking regmaglypts).
But, as you say (in the duplicate post, you have now deleted), there is no fusion crust. But there again, fusion crusts are known to have been removed by ablation in desert environments.
I see no chrondrules.
The shape is unusual, but nonetheless, it could be a piece of basalt (or very similar rock), from a lava flow.
The little silvery flecks are probably faces of mineral crystals, rather than flecks of metal.
If it is a meteorite, the most likely type is basaltic achondrite;
If you want to investigate the possibility of it being a meteorite, there are quite a few things to consider, as suggested here:
- http://epswww.unm.edu/iom/ident/index.html (also a useful table of densities)
Let us know what you think...!
Hi Mike and Toby77
I don't think it's a meteorite because of the unusual shape but as for the fusion crust being worn off is a possibility.
Comparably on the Holderness coast we find 'pyritic cannon balls' jurassic limestone 200myo shaped like a cannon ball and has a very hard 'skin' of pyrites about a quarter of an inch thick, all of this is usually formed around a fossil.
The best ones to find are covered in pyrites because they can be polished up to a bright golden shine, but sometimes they have been in the beach system for a while, along with the waves the sand and rocks have tumbled them and worn off the outer skin, they will still polish but only to a shade of grey.
I have seen similar specimens on the Holderness to yours and as Mike mentioned Basalt I think I would go with that.
Very nice specimen though, have you thought about reataching the pieces so you don't loose a bit.
Well thank you both for trying to help me, is this something that's worth getting tested? Or selling on to someone who will want it more than me, I've looked to see where I can get it tested but cnt find anywhere in the uk.
"Is it worth getting tested?"
That's what the tests in the preceding links are all about. They're unlikely to give you a 100% confirmation of meteorite, but they should enable you to decide if it seems likely, and hence worth the expense of professional testing.
Personaly I would keep the specimen because of it's interest but to sell it on I think you have to know what it is.
Just wondering if there are any geological society's in your area that could put a positive I.D, on it.