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Recent content by Johnho

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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. :)
  6. 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.
  7. J

    Help with identification

    I agree with Geologyhound, Slag.
  8. 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.
  9. J

    Need help identifying pls

    I'm going to take a wild guess and say it looks like slag from a smelting furnace or such.
  10. J

    Identify rock

    Dana, it looks like a piece of quartzite. It's round because someone tumbled it or it's been rolling around in a stream bed for eons.
  11. J

    I need help

    Looks like a piece of quartz. the rainbow colors are probably caused by some small fractures on the surface that are reflecting out of it. Rounded because it's water worn.
  12. J

    Help!

    Really hard to tell from the pictures. Not sure those shiny faces are mica. If it is you should be able to peel off a thin sheet with a knife. If you can't then my guess for those shiny grains would be a feldspar. Given either of those two minerals in the piece the best I could guess is an...
  13. J

    Anyone know what this is?

    I guess I'll make a comment or two. It's just a rock. Probably a conglomerate of sedimentary origin that has rolled around for so long it's got rounded. Typical of river banks. It would look nice back in the river bank. Not trying to be a smart a... but it's nothing of importance. But it's...
  14. J

    Help with this very sparkly rock?

    I do not see any schist structure now. But now think what you have is a coarse grained quartzite. Look here; https://www.sfu.ca/archaeology/research/research/etap/use-wear-raw-material.html But, if you look here https://wgnhs.wisc.edu/pubshare/M067.pdf you will see there is only one small...
  15. J

    Help with this very sparkly rock?

    My first thought was a mica schist but I didn't see that much schist quality except on that one photo of the dark side of the specimen. It's a tough one just from the pics but it sure seems metamorphic for sure.
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