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Let's Rock => Rock Talk => Topic started by: ubigdumy on November 13, 2017, 06:32:29 AM

Title: Need help identifying this rock.
Post by: ubigdumy on November 13, 2017, 06:32:29 AM

 Can someone help me with this rock I found. I tried looking through Google images but being color blind a lot of the pics look like it. It is really heavy, looks like gold flakes all through it, my earth magnets do stick to it but it's not a real strong magnetic pull, breaks or crumbles fairly easy, and is layered. Thanks for any info. Oh yeah it was found in Omaha Nebraska. (https://uploads.tapatalk-cdn.com/20171113/3e54f96386a927882ef1c20211f5c838.jpg)(https://uploads.tapatalk-cdn.com/20171113/4faf7af3de48e87264a647cc52147c5b.jpg)(https://uploads.tapatalk-cdn.com/20171113/22ed24297811f5afc5ebe4fe58471476.jpg)(https://uploads.tapatalk-cdn.com/20171113/0a3b8a531ee0635be26fdb08e8b3fcc4.jpg)(https://uploads.tapatalk-cdn.com/20171113/823971e35092f72ea77530bd442cfa38.jpg)

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Title: Re: Need help identifying this rock.
Post by: lithicbeads on November 13, 2017, 09:28:29 AM

The mica flakes and it's rather unstructured form internally indicate a metamorphic rock possibly a gneiss. Any type rock can be metamorphosed and if the initial rock were unusual it's metamorphic form could also be unusual. Geologists usually just ignore such rock even when they make up  whole hillsides as they are often impossible to identify. You can safely say it was once igneous.

Title: Re: Need help identifying this rock.
Post by: ubigdumy on November 14, 2017, 04:16:19 PM

 Thanks for the info. I was thinking a quartz mica but was hoping for a nice old meteorite. Lol

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