This used to be a perfect red Brick.
And because of the extreme heat from the plasma event, it got crystallized.
forming an altered state of matter with a natural shape of heat expansion forming crystalized columns.

BRICKS TRANSFORMED INTO BIG BLOCKS

The megalithic Inti Punku Sun Gate about an hour from Cusco.

Red bricks turned into blocks.
You can see the shape of the brick popping out of the blocks as a result of the heat expansion.

Cagaloglu,Turkey.