@@ -45,9 +45,10 @@
 				metallic = function(m)
 					if m and m.data and m.data.parts and m.data.parts.powder then
 						return {
 							hardness = m.data.hardness;
-							value = m.value or 1, grindcost = 1;
+							grindcost = 1;
+							grindvalue = m.value or 1;
 							powder = m.data.parts.powder;
 						}
 					end
 				end;
@@ -56,9 +57,15 @@
 				local def = minetest.registered_items[name]._sorcery
 				if not def then return nil end
 				def = def.material
 				if def and def.grindvalue then
-					return def end
+					return {
+						hardness = def.data.hardness;
+						grindcost = def.grindcost or 1;
+						grindvalue = def.grindvalue;
+						powder = def.powder or def.data.parts.powder;
+					}
+				end
 			end;
 		};
 		metal = {
 			predicate = function(name)
@@ -74,8 +81,12 @@
 				-- like armors and tools, to the material they
 				-- are made out of
 				local mat = sorcery.matreg.lookup[name]
 				if mat and mat.metal then return mat end
+				local prop = minetest.registered_items[name]._sorcery
+				if prop and prop.material and prop.material.metal then
+					return prop.material
+				end
 			end;
 		};
 		ore = {
 			groups = { 'ore' };