This is a dark black rock with gold shimmering chunks sticking out of it, some of the chunks look rainbow colored or fake gold color it is a small rock less than 5 lbs (https://i.stack.imgur.com/YpNKm.png)
closed as off-topic by Universal_learner, arkaia, Fred, trond hansen, Jan Doggen Jul 12 at 9:32
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- "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – Universal_learner, arkaia, Fred, trond hansen, Jan Doggen
The rainbow colored/gold chunks may be the copper iron sulfide (CuFeS2) mineral chalcopyrite. The surface of chalcopyrite can lose it's gold color when weathered and turn a gray, green, red, or blue iridescent color depending on the specific weathering conditions involved. Chalcopyrite can be distinguished from pyrite (iron sulfide) by scratching it with a nail - chalcopyrite can be scratched by a nail whereas pyrite will not.