diff --git a/examples/config/phase/bct.yaml b/examples/config/phase/bct.yaml
new file mode 100644
index 000000000..a840e6ede
--- /dev/null
+++ b/examples/config/phase/bct.yaml
@@ -0,0 +1,2 @@
+lattice: tI
+c/a: 0.55
diff --git a/examples/config/phase/hcp.yaml b/examples/config/phase/hcp.yaml
new file mode 100644
index 000000000..e9bf6b85c
--- /dev/null
+++ b/examples/config/phase/hcp.yaml
@@ -0,0 +1,2 @@
+lattice: hP
+c/a: 1.6333