′mil·ə′sīt ) ( mineralogy ) (Na,K)CaAl 6 (PO 4 ) 4 (OH) 9 ·3H 2 O White mineral composed of a basic hydrous phosphate of sodium, potassium, calcium, and aluminum.
′mil·ə′sīt ) ( mineralogy ) (Na,K)CaAl 6 (PO 4 ) 4 (OH) 9 ·3H 2 O White mineral composed of a basic hydrous phosphate of sodium, potassium, calcium, and aluminum.