They could be pyrite (fools gold), I cannot tell from picture; sometimes pyrite can have a small amount of gold.
You could send these to someone who can fire assay, but if you only have a couple of small rocks it would not really be worth it, unless you wish to spend money just to find out.
One problem with ore is it can be very dangerous to deal with, in some processes it can release arsenic, or other gases, so if you do any tests you should take precautions.
There can be several tests other than these.
Take a very small sample, cut it out with your pocketknife, what looks to be gold, and try to crush or hammer it, if it crushes or powders it is pyrite, if you can hammer it flat it can be gold.
Crush rock to powers and pan.
Here is a field test:
Sulfide ore gold test
Pinch of powdered mineral is fused (strongly heated to like a syrup) in a surplus mix of
One part ammonium chloride
And
21/2 parts ammonium nitrate
Melted fusion cooled
And salts dissolved in a few drops of HCl acid
A drop of solution on Qtip or filter paper, and add a drop of stannous chloride,
Red to violet indicates some gold in ore.
Take care not to breath fumes.
This test can be done in the mountains with simple tools (small kit and chemicals) packed up there with you.
