Type of rock/minerals

[DesperateRage]

Earlier this year my son and I went hiking for precious stones and metalic object using our first metal detector from harbor freight. We came across an area where the stone had a sand color like surface which the water had eroded/etched the surface. We broke it apart and found an interesting inferior.

Can anyone identify what type rock/mineral this is?

Thanks in advance.

 

[ANTIQUARIAN]

Welcome to Tnet from Toronto DesperateRage.

May I suggest that you re-post you and your sons find here... Rocks/Gems

Best of luck with your new detector
Dave

 

[Older The Better]

I’ll jump in with flint/chert if nobody else has anything better. The outer bit with a different color would be the cortex or parts subject to weathering. Rocks are a bit hard to id without handling in person
Could be volcanic (igneous/metamorphic) too but since there are no volcanic rocks where I live I don’t have much experience with them

 

[invent4hir]

DesperateRage, welcome to TNet! Although I'm no rock expert, I think Older The Better is on the right track. I'll add that where it is broken the edges are similar to unworked flint/chert I've found. If it scratches glass, that can also point to flint/chert. In what state did you find it? Dave/Antiquarian has some good advice re: re-posting to the Rocks/Gems forum.

Good luck to you and your son Hunting for interesting rocks, fossils, and metal detecting is a great way to spend some time together, plus get some fresh air and exercise. The more you do, the more your eyes will learn to spot finds among the dirt and rubble. It is amazing what others overlook!