diff --git a/doc/materials/groups/MATGROUP_METAL b/doc/materials/groups/MATGROUP_METAL
new file mode 100644
index 0000000..f3979af
--- /dev/null
+++ b/doc/materials/groups/MATGROUP_METAL
@@ -0,0 +1,5 @@
+Gruppenid:
+MATGROUP_METAL
+
+Name:
+Metalle