Rocks found on Mogollon Rim in Arizona. The area was approx 3ft wide and 8 ft long, they are not magnetite and have different minerals including turquoise and gold, dark in color . Downloaded pictures in my album, and if anyone can help that would be great.
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Due to the lack of a good chrystalline structure on the outside or decent fracture lines, I'm going to say Copper Porphyry. Porphyry happens when part of the hot material cools faster than the rest, leading to poor fracture lines and structure. I say Copper Porphyry because of the golden color trapped inside along with other stuff. There are several types of Porphyry. Around here (AZ) Rhyolite porphyry is common, mixed with Feldspar, especially near Wickieup off the 93. You might have some luck with Ask.com/Geology and there are a lot of people on Treasure Hunting Wiki from the Travel Channel. Good luck!
Thank you for the replies. I read about different forms of rocks and have taken to a couple of places and they where not sure. Some of the rocks look like it might be lava. obsidian or in that area they are heavy and look glassy and others are light with holes that looks like basalt. I have also looked into meter rocks it shows some of the same characteristics except are not magnetic. I will check about mining in the area and will post clearer pictures. Thank you for the ideas.
Willy it's very hard to tell just from the pictures, but I will give it a try.
I don't think it's a natural rock, but something formed by man or by nature of many different materials.
I think it's either slag from some type of smelting, this is because of the glassy looking nature of some of the bits in your pictures, it could also be from volcanic activity, the glassy look tells me that the sand has been turned into glass, but this is only a guess on my part.
The only other guess I have is either caliche or hardpack/hardpan, but that wouldn't explain the glassy look of the material, the small rounded rocks contained within some of the pieces is why I would think it could be caliche or hardpan.
Maybe someone that has found some of this before will know for certain, but my best guess is slag is there any history of a mine in this location?
Replies
Willy it's very hard to tell just from the pictures, but I will give it a try.
I don't think it's a natural rock, but something formed by man or by nature of many different materials.
I think it's either slag from some type of smelting, this is because of the glassy looking nature of some of the bits in your pictures, it could also be from volcanic activity, the glassy look tells me that the sand has been turned into glass, but this is only a guess on my part.
The only other guess I have is either caliche or hardpack/hardpan, but that wouldn't explain the glassy look of the material, the small rounded rocks contained within some of the pieces is why I would think it could be caliche or hardpan.
Maybe someone that has found some of this before will know for certain, but my best guess is slag is there any history of a mine in this location?
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