Index: coins.lua
==================================================================
--- coins.lua
+++ coins.lua
@@ -66,11 +66,12 @@
 	local metalname, gemname
 	local coincount
 	if not inv:is_empty('ingot') then
 		local id = slot_ingot:get_name()
 		for name,metal in pairs(sorcery.data.metals) do
-			if id == metal.parts.ingot then
+			if id == metal.parts.ingot or
+				id == minetest.registered_aliases[metal.parts.ingot] then
 				metalname = name
 				coincount = slot_ingot:get_count()
 				goto foundmetal
 			end
 		end
@@ -148,16 +149,20 @@
 	end;
 	allow_metadata_inventory_put = function(pos,list,idx,stack,user)
 		local id = stack:get_name()
 		if list == 'ingot' then
 			for name,metal in pairs(sorcery.data.metals) do
-				if id == metal.parts.ingot then goto okay end
+				if id == metal.parts.ingot or
+					id == minetest.registered_aliases[metal.parts.ingot]
+				then goto okay end
 			end
 		elseif list == 'gem' then
 			for name,gem in pairs(sorcery.data.gems) do
 				if gem.foreign then
-					if id == gem.foreign then goto okay end
+					if id == gem.foreign or
+						id == minetest.registered_aliases[gem.foreign]
+					then goto okay end
 				else
 					if id == 'sorcery:gem_' .. name then goto okay end
 				end
 			end
 		end
@@ -181,11 +186,24 @@
 		if list == 'output' then
 			local items_used = math.floor(stack:get_count() / coins_per_ingot)
 			local inv = meta:get_inventory()
 			local reduce_slot = function(slot)
 				local i = inv:get_stack(slot,1)
+				local s = i:get_name()
 				i:take_item(items_used) inv:set_stack(slot,1,i)
+				if slot == 'gem' then
+					for k,v in pairs(sorcery.data.gems) do
+						if v.parts.item == s then
+							local repl = ItemStack {
+								name = v.parts.shard;
+								count = items_used;
+							}
+							u.node.insert(repl, 'gem', pos, user, inv)
+							break
+						end
+					end
+				end
 			end
 			reduce_slot('ingot')
 			if not inv:is_empty('gem') then reduce_slot('gem') end
 			minetest.sound_play('sorcery_coins', { pos = pos, gain = 0.7 })
 		end

Index: lib/node.lua
==================================================================
--- lib/node.lua
+++ lib/node.lua
@@ -132,10 +132,26 @@
 		if not sorcery.lib.node.is_air(pos) then return false end
 		local ents = minetest.get_objects_inside_radius(pos,0.5)
 		if #ents > 0 then return false end
 		return true
 	end;
+
+	insert = function(item, slot, npos, user, inv)
+		inv = inv or minetest.get_meta(npos):get_inventory()
+		if inv:room_for_item(slot,item) then
+			inv:add_item(slot,item)
+		else repeat
+			if user then
+				local ui = user:get_inventory()
+				if ui:room_for_item('main', item) then
+					ui:add_item('main', item)
+					break
+				end
+			end
+			minetest.add_item(npos, item)
+		until true end
+	end;
 
 	tree_is_live = function(pos, checklight) -- VERY EXPENSIVE FUNCTION
 		-- this is going to require some explanation.
 		--
 		-- for various purposes, we want to be able to tell the difference between