Help with Stone ID on 3 necklaces

[karilsm57]

I have these 3 necklaces with stones I have no idea about. I have looked at some websites but they are confusing. If there is a good one out there please direct me. The 1st one left are very very cold and appear to be banded agate or are they just art glass. Middle one green/white marbling, not very heavy and not too cold, right one are different shades of brown with dark flecks and not to cold or heavy. After reading hertz's post, put me in the mind to ask about these. Thanks for any help. ( Posted a med. size photo )

[old.crows.nest]

One on left looks like Mexican bead necklaces. Need close ups on others.

[karilsm57]

See if this is better.

[old.crows.nest]

Top image looks like Mexican Onyx. Sorry not sure about the others. 

[karilsm57]

Thanks OCN. Yes that first one looks like the Mexican Onyx as you suggested. Now to figure out the other 2 if possible.

[southernmermaid8]

2nd one looks like some sort of jasper,  now which one?  

Loving the matte green finish on the third.  

[treasureislandpearls]

it looks like the 2nd one has picture (sandstone) jasper, dalmation jasper, and ? the 3rd is tough, would like to see the color in daylight?   there are so many jaspers out there!

[karilsm57]

Thank you at least I can search jaspers. I will try and get a daylight photo of the green one. (when it warms up)

[karilsm57]

Ok went outside - sorry for shakiness photos, brrrrrrrrr!

In direct sunlight pic 1 - shade pic 2 

[karilsm57]

The only stone I have found via web close enough so far for this is amazonite. 🤔

[evelyb30]

I'd just call the latter two Random Pretty Rock and leave it at that.  The spacers with the green stones look like copper in one image.  

[karilsm57]

Thanks evely, your right. I had thought that 2 - pretty rocks. Never thought of spacers being possibly copper. 

Thank you everyone.