Anyone know what these are?

[Rattlehead]

Had some rocks I got three of these from an estate sale a while back. The other I found in Lake Michigan. Not sure what they are. Any takers? (top one is from Lake Michigan. 2nd one is yellowish with black elongated crystals, 4th one is a deep green color, and last one is like a quartz crystal with stacked layers of thin flakey silver)

 

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[wvwildman]

the green one is slag from a coke oven not sure about the other ones

 

[StoneWhisper]

1) Blue Chalcedony aka (Thunder Egg)
2) Black Tourmaline/ Host stone (unknown)
3) Fancy or Picture Jasper
4) Unknown/ with a slate appearing base (blueish grey)
5) Combo Stone/Crystals aka Smokey, Clear and Amethyst

 

[Eu_citzen]

Below looks like chalcedony. (agate?)

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No idea.
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Chalcedony again.
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Shale?
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Perhaps Mica?
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