Colonial brain coral fossil (Natural) aquarium, home hot or collectible deco. Not live collected

Colonial brain coral fossil. Slightly light weight, white beige bone color with intricate details like shown in photo. Sizes is:

L - 6 in
W - 5 in
H - 3.5 in
Weight - 9.3 oz

I found this very beautiful piece off the beaches of Mexico and was not live collected. hot