Product information for 12k White Gold Leaf: 51.0% Au, 48.0% Ag, 1.0% Pd Thickness of each leaf: 0.12 microns Dimension 3-1/8” x 3-1/8″ Booklet covers: 1 5/6 sqf Our 12K Genuine White Gold Leaf is also available in 4 booklet packages for both the loose and transfer types. A total of 100 leaf sheets.