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d_day

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Everything posted by d_day

  1. 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
  2. Can you upload the pic directly to this thread instead of having us follow links to untrusted outside sites?
  3. Well, if it’s natural and that’s the view under a microscope, it’s got to be Pele’s hair.
  4. 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.
  5. A lot of tools are chrome plated to prevent rust. That could prevent nickel from reacting with the reagents.
  6. Either can attract a magnet. It depends on how much magnetite is in them
  7. Looks like a piece of basalt or a piece of dacite from an intrusive dike.
  8. Almost looks like a fluorite cube inside that opal.
  9. Appears to be chalcedony filling in the fractures in whatever the majority of that stone is.
  10. 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.
  11. 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.
  12. Not sure what it is. It’s going to fall somewhere on the agate/Jasper/chert spectrum I’m sure. gorgeous rock though. congrats on the find.
  13. Side note: My great grandmother is the person that discovered and named silver lace onyx. It’s so named because it actually contains silver. Some pieces contain a red mineral called realgar. It’s an arsenic mineral and is poisonous. It’s safe in its current form, so long as you don’t lick it or expose it to acid. Here are a couple more pictures of stones I’ve cut.
  14. It’s almost certainly calcite “onyx.” I’m about 90% sure it’s a type they call “silver lace onyx” from near Calico, CA. The .925 stamped inside means the metal the ring is made from its sterling silver. Here’s a couple of pieces of silver lace that I personally collected and cut. Edited to add: sorry the pic is blurry. It’s the only one I’ve got and I’m not at home to take another. These stones are a similar size to the one in your ring.
  15. My first impression was garnets, but there was no size reference. The container I could see made them look much larger than they are, which made me think they might be sard. Now that we’ve got a size reference I’d say they are most likely garnets. I’d still like to know the hardness and specific gravity before concluding they are garnets, but at this point I’m at about 95% that that’s what they are.
  16. What size are they? Do you know the hardness or specific gravity?
  17. I’ve seen some it big ones. The first one in the article is about the biggest I’ve seen. Glad I scrolled down instead of dismissing it. Those are some whoppers.
  18. The crystals I see look like calcite to me, though they could be quartz.
  19. Serpentinite was actually my first thought, for all the reasons you mentioned.
  20. This could be so many things. It’s too hard to tell exactly what it is from just pictures. I think Bob may be on to something with the quartzite. It does have the appearance of quartzite, which is a metamorphosed quartz sandstone. It also looks like it could be a fairly grainy chert. It could be a number of other things with staining from chemical weathering.
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