'The name of this hard stone, a form of silica resembling chalcedony, can also be found on maps of Michigan'
flint
ROCK OF AGES: The name of this hard stone, a form of silica resembling chalcedony, can also be found on maps of Michigan
The name of this hard stone, a form of silica resembling chalcedony, can also be found on maps of Michigan
The name of this hard stone, a form of silica resembling chalcedony, can also be found on maps of Michigan
ROCK OF AGES
flint
ROCK OF AGES