Many awesome looking rocks/minerals!

[Thatwhitedudee]

I have had a collection of rocks and minerals that i havent been able to identify for a while now. Any help appreciated as i am "newish" to this.

The top rock in the first picture will scribble on paper much like a pencil.
Bottom rock has red and white looking streaks in it.

This rock has what seems to be a fossil, the "base rock" seems to be sandy..

Top rock is reddish and looks almost of popcorn and has a few small quarts looking peices in it.
Second rocks have alot of color to them and have a crystal like infusion to them

Not sure on the bottom rock bit looks brownish/purple and is shiny, so i picked it up. Lol

Random rock i picked up.

These rocks will set off a detector and pinpointer. Very metallic in color amd is not mallable. Some seem to have a very slight almost non existent magnetic to them. Top rock is how i found them middle rock is sanded and bottom is a fractured peice.

I feel like this last rock is obsidian. Glassy attributes with sharp fractures. Black in color

 

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[HOOAHEXTREME]

The last one should be obsidian. The ones that set off the detector appear to be hematite. I find hematite here in South Dakota that looks like the middle rock. It sometimes has a slight magnetism but almost nonexistent. Here is is often confused with magnetite.