diff --git a/solcore/material_data/SOPRA_DB/AIR.MAT b/solcore/material_data/SOPRA_DB/AIR.MAT
index b22a0b92..c8689d46 100755
--- a/solcore/material_data/SOPRA_DB/AIR.MAT
+++ b/solcore/material_data/SOPRA_DB/AIR.MAT
@@ -3,6 +3,6 @@ FORMAT*1*
 POINTS*2*
 DATA1*1*1e2*1*0*
 DATA1*2*1e6*1*0*
-COMMENT*Added manually to the SOPRA database.*
-COMMENT*Added manually to the SOPRA database*
+COMMENT*Added manually to the SOPRA database for Solcore.*
+COMMENT*Added manually to the SOPRA database for Solcore.*
 EOF*
\ No newline at end of file
diff --git a/solcore/material_data/SOPRA_DB/PERFECT_MIRROR.MAT b/solcore/material_data/SOPRA_DB/PERFECT_MIRROR.MAT
new file mode 100644
index 00000000..71df4fc9
--- /dev/null
+++ b/solcore/material_data/SOPRA_DB/PERFECT_MIRROR.MAT
@@ -0,0 +1,8 @@
+VERSION*1*
+FORMAT*1*
+POINTS*2*
+DATA1*1*1e2*1e8*0*
+DATA1*2*1e6*1e8*0*
+COMMENT*Added manually to the SOPRA database for Solcore.*
+COMMENT*Added manually to the SOPRA database for Solcore*
+EOF*
\ No newline at end of file
diff --git a/solcore/material_data/SOPRA_DB/SOPRA_DB_Updated.csv b/solcore/material_data/SOPRA_DB/SOPRA_DB_Updated.csv
index dd8a66a6..8533d023 100755
--- a/solcore/material_data/SOPRA_DB/SOPRA_DB_Updated.csv
+++ b/solcore/material_data/SOPRA_DB/SOPRA_DB_Updated.csv
@@ -1,6 +1,7 @@
 Filename,Symbol,Range (nm),Description
 Individual Files,,,
 AIR,Air,100     1000000,Air
+PERFECT_MIRROR,perfect_mirror,100     1000000,perfect mirror (high n)
 7059,7059,250      900,Glass 7059
 AG,Ag,187     2066,Silver
 AL,Al,183     2479,Aluminum