Density and Dimensions of the Heraeus Platinum Coins

Mass, g Density, g cm−3 (Archimedes) Thickness, mm Diameter, mm
min. max. min. max.
3 rouble / 1842 10.27 20.78 1.41 1.45 23.38 23.43
3 rouble / 1844 10.37 20.40 1.37 1.40 23.55 23.59
6 rouble / 1830 20.64 21.18 1.83* 1.99* 28.49 28.65
12 rouble / 1832 41.34 20.26 2.36* 2.46* 35.77 35.82
Coronation / 1826 11.58 20.42 1.97* 1.50** 1.98* 22.16 22.22

* rim;

**inside