diff --git a/crafts.lua b/crafts.lua
index 8edb58f..d404621 100644
--- a/crafts.lua
+++ b/crafts.lua
@@ -372,3 +372,8 @@ minetest.register_craft({
 		{"xpanes:bar", "xpanes:bar", "xpanes:bar"},
 	},
 })
+
+if minetest.get_modpath("technic") then
+	technic.register_grinder_recipe({input={"gloopblocks:pumice"},output="default:sand"})
+	technic.register_grinder_recipe({input={"gloopblocks:basalt"},output="default:cobble"})
+end
diff --git a/depends.txt b/depends.txt
index 23fe580..8b07d49 100644
--- a/depends.txt
+++ b/depends.txt
@@ -8,3 +8,4 @@ intllib?
 wool?
 xdecor?
 caverealms?
+technic?