diff --git a/data/aluminum.json b/data/aluminum.json
index f4450f7..61b0651 100644
--- a/data/aluminum.json
+++ b/data/aluminum.json
@@ -4,7 +4,10 @@
     "Formula": "Al",
     "CAS Reg No.": "7429-90-5",
     "Mol. weight": 26.982,
-    "Physical Form": "silvery-white metal; cubic crystals",
+    "Physical Form": {
+      "color": "silvery-white metal",
+      "crystal": "cubic crystals"
+    },
     "Equilibrium": [
       {
         "p": [1, "Pa"],