"Gems appear randomly during all mining, and cannot be prospected." - Can anyone with 90+ prospecting confirm that this is absolutely true? My testing has indicated that gems occur in clusters of tiles much like flint and salt, and I suspect that they are prospectable at some point, probably 80 if the 20 skill increments are any indication. --[[User:Telarin|Telarin]] 13:50, 8 April 2011 (UTC)
: In all my mining gems have come very randomly. The best was 6 shards mined in between two gems just recently and the worst stretch was 4k mining actions without a gem. I also mined away 7 veins so far and they all gave gems at some point except for the one iron vein that popped after about 700 iron. So far I got 140 gems. 92 on rock with a ratio of 1 in 975 shards mined and 48 on ore with a ration of 1 in 926 ore mined. So to me it seems that every tile really has the chance to give gems but rock tiles simply break to fast ;) --[[User:Ago|Ago]] 17:38, 8 April 2011 (UTC)