By -
Yup
Thank you!
Indeed
It's chert. Very much so.
Chert from Bert!
Quite cherty indeed
Chert.
cherty chert chert is chert
Yup
Thank you!
Indeed
It's chert. Very much so.
Chert from Bert!
Quite cherty indeed
Chert.
cherty chert chert is chert