No that's just iphone lighting, the pump itself seized mid BOINC due to an air bubble getting trapped. Thus no actual cooling occured until the system shut down in thermal protection...
That's not good but it would still have to get to about 250 celcius to start to turn the copper into a coloured heat tarnish, You have to go past the point where the copper oxidises in it's normal state and take it into a heat region where it forms other oxide compounds. Then the heat has to be left on it for a bit to cause these oxides to build. Those oxides are very pretty and if you'd have shown a heatsink with this sort of colour I would have been really worried.
The colour you have doesn't sequence correctly for that greenish middle section in your images, it has to go through the pink/red stage first and that would be evident in the edges of the green section. The blue areas are the parts that have been hottest for longest allowing that type of oxide to form, The red is cooler and a different oxide is formed. The purple transition is where both are formed.
Yours is still in the black copper oxide phase (looks dark orange because it forms almost like a film) and that black oxide can form at room temp up to the temp needed to start the next phase. Granted your cooler probably needs replacing and it will have reduced the life expectancy of the chip but the tarnish is still the basic type and would polish out like normal.
I would imagine the greenish part is actually natural patina probably a skin of verdigris (copper carbonate).
So the big question is what damage do you have? And do you have a solution ready to get the rig working whilst you send off parts if RMA's are possible.
