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Newbie. What rock is this? Help!
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
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Calisun




Joined: 14 Feb 2019
Posts: 7
Location: California

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PostPosted: Feb 14, 2019 14:04    Post subject: Newbie. What rock is this? Help!  

Hello everyone,

I am new to rock collecting, and have no background in geology. I was glad to find this forum, and look forward to sharing what I find, and learning more from you. found a couple of these rocks the other day in Southern California, and in spite of spending a lot of time trying to do image searches, I have no idea what they are. I am attaching the pictures of one of the two rocks. The sectional images are magnified (10x). Here are some observations: The colors seem to be black, yellow, and red with thin white lines. Some of the black circular patterns seem to have rings when viewed under 45x magnification. There seem to be crystalline areas. The rock weighs about 10 lbs.



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