GeologyRockswhat is this rock?
- Login to post a new forum topic.
Rank:
Contact:
What is the exact location
Sun, 05/18/2008 - 21:06What is the exact location it was found in Greece? There are some major ore deposits in greece. I am pretty sure we are seeing a piece of massive sulfide (maybe oxide) ore. Definitly no fulgurite not from space. No traces of melting can be seen. On the lower foto one can see cubic crystals, maybe pyrite, galenite, etc. The rust-colored patches might be limonite/iron oxides/haematite, etc.
Rank:
Contact:
Certainly the lower
Wed, 05/28/2008 - 21:15Certainly the lower picture looks remarkably like pyrite, and the other two could be smoothed and discoloured due to weathering.
Have you tried a hardness test on it? Try scratching it with a steel knife. Does it scratch or is it harder than the knife? And if it scratches what colour is the powder?
Any idea what the specific gravity/relative density is? Estimate what that weighs against the same volume of water (yes, it is difficult to imagine first time), and tell us if its 4 ,5, 6 times (for instance) heavier.
These tests will narrow it down for us, and hopefully we can give you a more accurate idea. But in honesty, without actually seeing it ourselves, we cannot guarentee to be 100% accurate.
John
“Civilisation exists by geological consent, subject to change without notice.” - Will Durant
Rank:
Contact:
I agree with John, the third
Wed, 06/11/2008 - 18:54I agree with John, the third picture looks alot like pyrite. I've got a few pieces of pyrite myself, from Holland, and they look very similar to the one of the third picture. And the first two pictures indeed look like weathered pyrite.
Greetings Bram.
Rank:
Contact:
what is this rock?
Submitted by evan on Sat, 05/17/2008 - 12:28.Hello everyone,
i found this rock back in 1980 in Greece. It was a rainy day at my field which has soil and rock when a thunder striked upon the ground and then i found that strange rock. I didn't know what was that and i didn't gave much attension. I thought it was a kind of meteorite at first....Today i came across with this again when I was clearing out my desk. So i decided to look fo that in the internet, now i don't believe that this is a meteorite but i believe that this is a fulgurite: http://en.wikipedia.org/wiki/Fulgurite This is the 1/2 of it's original size which was 8 cm long. I cut it in 2 pieces so i can see how it was inside.
And now i'm asking you guys to tell me if i am right!Has anybody came across with this again?
Sorry for my bad english and thanks in advance!
Here are some pictures of it: