Either way crafting them using our custom recipes or trading with villagers at the spawn, it is possible to get ANY ITEM IN MINECRAFT SURVIVAL in our Skyblock Server. In the case of Andesite, Granite and Diorite, it is possible to craft them yourself! For more info do /recipe <Item/BlockName> In this special case you would need cobblestone and Nether Quartz to craft Diorite, which can be used to craft Andesite and Granite