awhile ago i saw a post where once a minute it would take a screenshot of every1s screen and access the amount of ores there were. this was rejected. also, i saw another where if you mined a certain amount of ores it bans you automatically. also rejected. but i had an idea.
if a player mines a certain amount of ores quickly, a staff member is notified. they can then take a screenshot/live video of that players screen to manually access the xraying. if they see xray or just mining ore to ore, they are banned.