So, the more modest photos (with tops on)

'k

Ummmm.... well..... you see.... Hmmmm.....

ok,....

OK, when you describe or sell these exquisite pieces, the slabs of
rock look to me like "gabbro", which are considered "granitoid" but
are not "granite" senso stricto. It's often referred to as "black
granite". It adorns many of the sills on the drive-through windows at
the In-n-Out Burger chain in CA. And lot's of other places too.

Sorry, but I'm a geologist, know granites and related rocks, and like
to keep the universe in order.

-Zz