I found it upstate New York... Can someone please help me identify this rock. I added photos with different lighting. It's a very dark purple with a mix color showing more in the center. Its very soft and the chipped side of it sparkles.

New information; It looks very similar to a "Raw Star Ruby" but I don't know much about rocks to be able to tell. I've been researching and it's the only stone that looks like it to me...

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    $\begingroup$ For help in identifying geological objects such as rocks and minerals. Please follow this guide: meta.earthscience.stackexchange.com/a/125/56. $\endgroup$ – John Feb 27 '17 at 6:18
  • $\begingroup$ Likely garnet gneiss. The greenish part may contain the mineral epidote. $\endgroup$ – haresfur Feb 27 '17 at 21:48

I think you have a piece of garnet rich gneiss. There are a number of garnet bearing gneiss formations in upstate New York. The image below shows mines in New York where the rock type is listed as garnet bearing. Keep in mind, the mines represent regions where garnet bearing rocks occur and in most cases the rock outcropping are not limited to the mines themselves.

Data from USGS Mineral Resources Data System (MRDS) database. Screen capture of Digital Rockhound's companion.

DRC screen shot


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