cluster     1   number of spheres in cluster     8
    1  -6.56400   1.64600  17.40200   0.700    1                                
    2  -5.19900  -0.47600  16.19900   0.700    2                                
    3  -3.99400   1.56100  16.82600   0.700    3                                
    4  -5.64500   1.72700  15.01800   0.700    4                                
    5  -7.69900   1.30400  16.91500   0.700    5                                
    6  -6.56800   3.01100  17.33100   0.700    6                                
    7  -6.33600   1.18900  18.58900   0.700    7                                
    8  -5.28700   1.13600  16.31200   0.700    8