Help With Rock/Vein Identification

[Jj12345]

Any information about this rock/vein and possible minerals would be greatly appreciated!

Location = Northern Wisconsin - Keweenawan age volcanic and plutonic rock area.

Thank You!!!

 

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[Eu_citzen]

Greenstone, Diabase & Basalt are likely candidates.

 

[Neon]

Looks like a basalt sandwich. lol keep looking