enter image description here

This rock is sort of a dark grey/black and kind of shiny but more matte I'd say. It does have some brown rust-like spots on it. And the inside has little dimples in a what seems to be more chalky white rock. Was found about 3 feet under ground when working and digging pipes up. It's got smooth sides all around it also.

Image of rock


closed as unclear what you're asking by Jan Doggen, daniel.neumann, Fred, Camilo Rada, bon Apr 10 '18 at 9:57

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 2
    $\begingroup$ Please see this page for information on how to ask rock identification questions. As it stands, there is not enough information here to provide a good answer. $\endgroup$ – bon Apr 25 '16 at 9:24
  • $\begingroup$ Did you actually read the page I linked. Photos are nice, but a thorough description is generally more useful. The page gives you some ideas about things you should include. $\endgroup$ – bon Apr 25 '16 at 18:53
  • $\begingroup$ How heavy is it (dense or light, use metal and other rocks for comparison) and where approximately was it found? It looks igneous by my first glance. $\endgroup$ – Michael Wallace Apr 25 '16 at 23:22
  • $\begingroup$ Try scratching the black part with the tip of a knife. If you can scratch it, what colour is the dust? $\endgroup$ – haresfur Apr 26 '16 at 0:19
  • 2
    $\begingroup$ Where did you find the rock? $\endgroup$ – Gary Kindel Jul 12 '16 at 23:49