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I found it in desert, there is not any evidence of igneous or metamorphic rocks around it, it's density is between 3.5-3.9, some magnetic, some parts have pyrite minerals, streak is dark brown, luster is metallic. Picture01 Picture02 Picture03 many thanks

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closed as off-topic by Camilo Rada, trond hansen, Fred, Peter Jansson, Gimelist Mar 24 at 21:35

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  • $\begingroup$ Really need more information but 99.999% sure it is not a meteor. Given the density, weathered rust color and metallic sheen on the chipped portion I would consider calling it hematite yet hematite is typically not magnetic. The magnetic aspect could be caused by some magnetite also in the sample. If it was all magnetite it would be strongly magnetic. A streak test and a hardness test would be helpful in determining what the rock is. $\endgroup$ – Friddy Mar 22 at 17:42
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    $\begingroup$ Where in the desert did you find it, general location and whether on a hillside or a creek bed? $\endgroup$ – Friddy Mar 22 at 17:55
  • $\begingroup$ Its from Lut Desert in Iran. $\endgroup$ – Kia Mar 22 at 19:57
  • $\begingroup$ Hi Kia. I don't know enough about the Lut Desert to be very helpful. The desert looks like someplace I could spend weeks exploring. $\endgroup$ – Friddy Mar 22 at 23:14
  • $\begingroup$ It's actually common for magnetite to alter to hematite. Many magnetite samples in my university actually have an hematite coat that fools everyone when the luster test is applied. HOWEVER they're from extremely humid environments, rather than arid. Anyway, to check whether that's the case, look at the streak's colour (hematite's dark reddish and magnetite's black) and the magnetism (if it's strongly magnetic, i.e. a circular magnet as big as a hand-made 'ok sign' gets attracted to it from a few centimeters away). $\endgroup$ – Matheus Mar 22 at 23:29