Blue Obsidian ???? or Something Else ?

[HappyTrails55]

I'll be posting pictures here, Need Help to Identify These...Yes they look like Obsidian but they are BLUE, they also look like crystal, one is engulfed in Quartz...What's Your Take on these? Thanks, Darrell

 

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[Eu_citzen]

First thought is glass slag.

 

[hvacker]

Me too.

 

[DDancer]

Have to put a third vote in for glass. The rounded bit looks like its been worn by tumbling.

 

[OzarkCat]

Looks like Azurite.

 

[Mrdigz]

I would have to say slag glass.