eh, no......
best rock is olivine/dunite
second best is the bomber blue-gray limestone
then granite
quartzite& gritstone
desert sandstone
gneiss, basalt
tuff
schist, average limestone, conglomerate
average sandstone,
siltstone, mudstone, fractured alpine metamorphics, slate
then Canadian Rockies alpine kitty litter limestone!
New Zealand alpine kitty litter (weetbix) almost at the bottom of the list!
but the very bottom
of the list
is RECENT VOLCANIC ROCK