ID Help With Various Finds

[DSM]

Hi, I found these stones in CT among others that I'll post after and would greatly appreciate any help. Thanks

[DSM]

Hi, I found these stones in CT and would greatly appreciate any help. Thanks

[DSM]

Hi, I found this stone in CT; a bit heavy and attracted to large magnet. Would greatly appreciate any help. Thanks

[Steve Herschbach]

Due to the number and quality of finds you have made, I highly recommend you seek out and join a nearby rock club for help. You have a good collection going already and would do best with in person help.

There is no need to post new threads for each set of photos. I have merged them all here and suggest you add any additions here.

[DSM]

Thanks Steve, I'll look into it.

[Geologyhound]

Some of it looks like furnace slag or glass foundry slag.  The black crystal could be smoky quartz.  Is it six sided?  If so, does it have striations (multiple parallel lines) on the prism (side) faces?  If so, are the striations parallel to the long axis, or perpendicular to the long axis?   If the striations are perpendicular to the long axis then it is smoky quartz.

Oddly enough, quartz crystals sometimes display rare crystal faces where the corner of the prism faces meet the termination faces.  If present, these rare faces can increase the value of a crystal to collectors.