function [] = initializeGranite()
    %%
    granite = struct();

    granite.m = 2000; % [kg]
    granite.k.ax = 1e8; % [N/m] x-y-z Stiffness of the granite
    granite.c.ax = 1e4; % [N/(m/s)]

    %% Save
    save('./mat/stages.mat', 'granite', '-append');
end