What are Shaligram rocks? Story of the auspicious stone of Hindus

This video explains 3 things 1.Scientific nature of Shaligram rocks. 2.Why are these rocks found in Neapl's Gandaki Riverbanks alone 3.The Hindu story that gives the stone holy nature #shaligrama #nepal #india #ayodhya #ammonites #fossils #epic #hinduism #puranas #vaishnavism #culture #idol #rammandir