Shaligram is god Vishnu himself. Saligrama or Sila(शिला) is worshipped by vaisnava and mostly in every hindu devotee home and Temple. To please God vishnu any Shaligram or Specially Different form of Saligram is worshipped Ritually. Those who donot Find Saligram Form and Name or Saligram with chakra or without chakra(marks or design) ,One should think he is krishna himself. Saligram Mantra and Puja is done in various ways,small and ritual puja in most of the house and temple every day.
Shaligram