Al-O, Chalcogen, Corundum, Disordered, Orthorhombic

• C502739-3
• C1100571-1
• C202108-2
• C204277-9
• C204278-8
• C204279-8
• C204400-1
• C204409-2
• C207175-2
• C207312-1
• C207315-1
• C213110-6
• C216135-2
• C216137-1
• C217075-3
• C217127-2
• C219204-1