The so-called Top of the Mont Blanc is a not appropriately named collection piece on display in the Oval Room of Teylers Museum. The specimen was supposedly cut off from the highest findable piece of exposed rock of the Rocher de la Tournette, high on the snow covered summit ridge of the Mont Blanc on 3 August 1787, during one of the first climbs of the mountain by the Swiss scientific pioneer Horace Bénédict de Saussure.