fitzcoraldo wrote:
Hello fitzcoraldo,
a quote from your posting above:
"… the white patches are where the rock has cracked and exfoliated."
Exfoliated? I thought that was summat to do with beauty parlours.
Chambers English Dictionary: v.t. (of skin, bark, rocks, etc.) to shed in flakes; to remove in flakes.
OK, I geddit now.
Andy