cluster     1   number of spheres in cluster    12
    1  10.60500   0.21900  23.81100   0.700    1                                
    2  10.24900  -1.26200  23.68300   0.700    2                                
    3  11.88100   0.53400  23.00900   0.700    3                                
    4   9.31200  -1.81400  24.77900   0.700    4                                
    5   9.12800  -3.32700  24.58700   0.700    5                                
    6  14.32700  -0.09100  23.06100   0.700    6                                
    7   9.85600  -1.54500  26.15200   0.700    7                                
    8  15.30100  -0.78800  23.63900   0.700    8                                
    9  14.61600   0.67400  22.01400   0.700    9                                
   10  13.07000  -0.17400  23.54200   0.700   10                                
   11   8.48200  -3.72800  23.58800   0.700   11                                
   12   9.62700  -4.10200  25.43300   0.700   12