On the Economy server, it doesn't seem to be possible to obtain an observer block. I've checked in the shop and there are no nether quartz and I even went to the nether but whenever I mined the quartz ore, it never gave me the actual quartz. Is there something I'm missing?
You just have to spend a good amount of time mining Quartz. As said, droprates are low. I made observers, so it is possible to get them M0gliez doesnt have a shop on eco for all I know