Brown aluminiomu afẹfẹti wa ni idapọ ati crystallized labẹ iwọn otutu giga lati adalu bauxite ati awọn miiran ati awọn ohun elo aise miiran.O jẹ ijuwe nipasẹ lile giga rẹ, lile to dara ati apẹrẹ ni iwọn.