2 FractalIndex: Double(unit="U"),
3 Bondforce: Double(unit="N"),
4 Density: Double(unit="kg/m^3"),
5 RefractiveIndex: Double(unit="U"),
6 UVabsorption: (Double(unit="1/s"), Double(unit="1/s")),
7 SurfacePotential: Double(unit="V"),
9 RPermittivity: Double(unit="U"),
10 AvgRadius: Double(unit="m")