This was found near a river on sand with the green side down. The first picture of the rock has a glossy finish. The second image has a high green color that resembles a crust layer involving heat of some type. this side was face down in loose high grain sand.

  • Location: Cen Ca,
  • Weight: 14 oz
  • Size: 4 in, 3 sided pyramid structure
  • Color: olive green
  • Density: average stony rock
  • Magnetism: slight in certain areas

picture one

picture two


closed as off-topic by user12525, Fred, Gimelist, trond hansen, BillDOe Sep 1 at 20:04

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  • $\begingroup$ I guess 'Cen Ca' is central California? Can you describe what you mean by 'fusion crust'? If you have a better image than that first one, I think that would help too. $\endgroup$ – kwinkunks Nov 26 '15 at 13:24
  • 1
    $\begingroup$ @Kwinkunks-Thank you for the edit,im away with only cell technology. $\endgroup$ – user5434678 Nov 26 '15 at 13:25
  • $\begingroup$ Well a baked side is my only description of the second image.How can I properly change the wording not using fusion crust? $\endgroup$ – user5434678 Nov 26 '15 at 13:28
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    $\begingroup$ When you're not sure what something is, it's best to keep description separate from interpretation. So a feature described as a 'black, glassy lustre' (say) might be interpreted as a fusion crust. $\endgroup$ – kwinkunks Nov 26 '15 at 13:32
  • $\begingroup$ Update your pictures. With this low quality you can not expect people to give meaningful answers. $\endgroup$ – Jan Doggen Nov 27 '15 at 8:25

Looks like you got yourself another lodestone Did you find this one near the area you found the other rock you wanted identified? The rock was heated naturally and this causes the magnetism in it. Charles Aubourg is a geologist at the University of Pau and the Adour Countries in France. He and his colleagues heated samples of a type of sedimentary rock to as much as 130 degrees Celsius (about 266 degrees Fahrenheit).The rocks’ magnetic field rose during each stage of heating. It increased most quickly during the earliest days of each step. The growing magnetism of the samples suggests that the heat triggered reactions that caused some of the pyrite to chemically transform into magnetic minerals.

Hope this helps a little


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