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Search results

  1. J

    Need help identifying odd rock

    I looked up Lake County Geology and found the soils and rocks are all from glacial till meaning it is not a local rock but transported by glaciers that brought soil and rocks from Canada or gouged out the great lakes most likely Erie. Thus it's rounded shape. It's had a journey. Igneous rocks...
  2. J

    Need help identifying odd rock

    Where did you find it? Only thing I can say now is it looks like an Igneous rock. If you have college near you with a geology department they may be able to help. Another place would be if you have any rock and mineral clubs near you. My first reaction from two of the pictures was basalt but...
  3. J

    Is this Blue Lace Agate or something else?

    the last pics you posted seem to look like Calcedony. As to your first pics I found this on GemSelect.com. " Some gemstones show a distinct or dramatic change in color under different light sources. Look at a garnet under electric or artificial light and it could look red, take it outside into...
  4. J

    Is this Blue Lace Agate or something else?

    mystery to me too. I spent some time trying to find this light change in other minerals and there are very few that do it, except if using ultraviolet lights. Agate was not one of them under various white light sources. If this was some unique thing I would think the mineral collectors would...
  5. J

    Is this Blue Lace Agate or something else?

    First off you would be better served if you move this to the Rock and Mineral Forum. Second, what is the light source for the blue? And exactly what bulb are you using that turns it yellow? Some minerals will change color depending on light source but this is a mystery to me so far.
  6. J

    Please help me identify this stone found in mountain in Colorado

    I'm guessing aquamarine too. If fluorite I would expect to see more cleavage planes. It's a beautiful specimen if it is. Can you scratch it with a knife? If not then most probably aquamarine. If you can it's most likely fluorite.
  7. J

    I got it , a Super cool meteor !)

    Now I know we're getting our chain yanked.
  8. J

    Tassedet meteorite?

    Look up septarian nodule
  9. J

    I got it , a Super cool meteor !)

    First off it's not a meteor. If it came from space and landed it's called a meteorite. And it's not a meteorite either. None of those pebbles embedded in it would ever survive the tremendous temperatures (some 3200 degrees F) going through the atmosphere. Looks more like a piece of concrete...
  10. J

    Could this be a diamond?

    Hard to tell, If it's hexagonal it's not a diamond, they are cubic. If you have a piece of quartz see if it scratches that. Now if you wife has a nice blue sapphire ring it would scratch that. Oh wait, bad idea. :)
  11. J

    Could this be a diamond?

    Where did it come from?
  12. J

    Hi. Does anyone know what this is?

    I think that solves the question, it's a tar or asphalt of some type. The quartz, I'm pretty sure, was part of the mix.
  13. J

    Hi. Does anyone know what this is?

    Does no look like black quartz to me. It appears to be some sort of coating. That's why I asked for them to scratch it.
  14. J

    Hi. Does anyone know what this is?

    That's an odd one. The light mineral on the inside looks like Quartz. that black stuff is odd. Can you scratch it off with a knife? It just doesn't look like a natural coating from the picture.
  15. J

    Help identifying this please?

    Looks like a piece of quartz from a sand and gravel deposit. I don't know what the yellow stuff is but probably some form of quartz or chert.
  16. J

    Anyone know what kinda rock this os ?

    Well, that's a tough one. I google light weight black minerals and all I could come up quickly with is a rock called Jet. It's a very dense form of lignite or coal. See if a knife easily scratches it. Jet is very soft and should scratch easily. I hate these tough ones. :)
  17. J

    What's this weird looking rock??

    Looks like a piece of agate. If you google "Agate formation" you will see the way it forms, pretty much as Geologyhound says.
  18. J

    Help with identification

    I agree with Geologyhound, Slag.
  19. J

    Need help identifying

    That's what I thought too. But the other side looks like a course grained granite with some black Tourmaline. Course grained granite would be a slow cooling igneous rock where as the schist would be metamorphic.
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