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Everything posted by d_day

  1. Is it purple or is that just the lighting?
  2. It might be a broken septarian nodule. It’s possible a septarian formed and was eroded out of where it formed, then ended up in a stream bed or other placer deposit where it became part of a conglomerate. At some point It would have eroded out again and broke, exposing the softer calcite lining the center, which would have then eroded quickly. The bits on the inside would be the only remnants of what was once the interior. I think it’s long shot, but it’s possible. I think it’s pretty likely that it was once a concretion of some type, but not necessarily a septarian.
  3. It appears to be a very heavily eroded agate.
  4. Looks more like mineral encrusted twigs to me, but I’m no fulgurite expert so don’t take my word for it.
  5. Appears to be amygdaloidal basalt.
  6. Next weekend I’ll be participating in the Distinguished Gentleman’s Ride. It is a men’s health fundraiser, raising funds mainly for testicular cancer and mental health research. I know it’s been a tough year+ for all of us, and many of you are not in a position to donate. I’m okay with that sand I get it. If, however, you are wiling and able to sponsor me, you can do so here. https://gfolk.me/PhilBeebe321035
  7. That thing is huge. I hope its reentry dumps it in an ocean.
  8. That certainly appears to be mica schist. https://en.m.wikipedia.org/wiki/Schist
  9. Can’t see the photos, but your description sounds like schist.
  10. I’m not a meteorite guy. Looks like a terrestrial piece of basalt or basanite to me.
  11. I agree with Morlock that it’s not a meteorite. I don’t agree that it’s a sulphide of some sort. I think you’ve got a chunk of garnet schist there. of course identifying rocks and minerals from photos alone is extremely difficult, so either of us may be correct, or both of us may be wrong. https://en.m.wikipedia.org/wiki/Schist
  12. Can you upload the pic directly to this thread instead of having us follow links to untrusted outside sites?
  13. Well, if it’s natural and that’s the view under a microscope, it’s got to be Pele’s hair.
  14. First thought is rutilated quartz, but those blobs and curves are all wrong for that. Almost looks like glass that has been stretched out before it cooled.
  15. A lot of tools are chrome plated to prevent rust. That could prevent nickel from reacting with the reagents.
  16. Either can attract a magnet. It depends on how much magnetite is in them
  17. Looks like a piece of basalt or a piece of dacite from an intrusive dike.
  18. Almost looks like a fluorite cube inside that opal.
  19. Appears to be chalcedony filling in the fractures in whatever the majority of that stone is.
  20. I agree with Morlock on this one. A quick google search shows that copper has been mined in northern Connecticut, so I think it’s most likely chrysocolla.
  21. Looks an awful lot like basanite. Basanite has a hardness of 7, which fits your specimen. Not sure if it ever attracts a magnet. Basalt can attract a magnet, and can be black, but only has a hardness of 6.
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