blue rock

Just getting started on my rockhounding adventure...I even ordered a rock tumbler...just an entry level one to see if I should just buy polished rocks instead. :-) Anyway, I am in Nelson County, Virginia up against the Rockfish River and I went searching for treasure this weekend for the first...

So I have had this thing for many many years. It has been dropped on concrete never broke as you can see in the top I tried making an ashtray out of it (teenager) with a hammer and large Flathead screwdriver that's all it did after 3hours of banging the ever living out of it... What is this...

So I have had this thing for many many years. It has been dropped on concrete never broke as you can see in the top I tried making an ashtray out of it (teenager) with a hammer and large Flathead screwdriver that's all it did after 3hours of banging the ever living out of it... What is this...

I found a rock in my backyard digging. I live about an hour out of Philly. It seems to be a light blue color and might be glass. Its about the size of a dice.