diff --git a/doc/materials/groups/MATGROUP_TROPICAL_WOOD b/doc/materials/groups/MATGROUP_TROPICAL_WOOD
new file mode 100644
index 0000000..02fa072
--- /dev/null
+++ b/doc/materials/groups/MATGROUP_TROPICAL_WOOD
@@ -0,0 +1,5 @@
+Gruppenid:
+MATGROUP_TROPICAL_WOOD
+
+Name:
+Tropenhoelzer