Chemical Formula: Fe+++3O3(PO4)
Help on Composition: Composition: Molecular Weight = 310.51 g
 
Oxygen 36.07 % O 0.00 % 0.00 %
Phosphorus 9.98 % P 22.86 % P2O5 0.00 %
Iron 53.96 % Fe 77.14 % Fe2O3 0.00 %


100.01 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: Fe3+3O3(PO4)
Help on Environment: Environment: As nodules about 1 cm in diameter with cavities lined with aggregates up to 1 mm long
Help on Locality: Locality: The Castelnovo mine, Santa Barbara lignite area, Upper Arno River Vally, 30 km SE of Florence, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Giuseppe Grattarola (1905-1988), professor of mineralogy at the University of Florence, Italy
Help on Synonym: Synonym: IMA1995-037