[atc23]

Only the smallest blocks are a measley 2.5 tons. The bottom courses of the Great Pyramid are in excess of 200 tons - nice try though. 200 tons is the weight of a locomotive engine - FReegards

[JoeProBono]

Big stones (megaliths), some nicely decorated, were a part of the culture of the island of Nias off the western coast of Sumatra, Indonesia. There were big stone statues, stone seats for the chieftains and stone tables where justice was done. There were also big stones needed to commemorate of important deceased people. When such a stone was erected, a ritual feast was to be given. All this to enable a nobleman to join his godly ancestors in the afterlife. On the photo such a stone is hauled upwards. The story has it that it took 525 people three days to erect this stone in the village of Bawemataloeo. (P. Boomgaard, 2001)

[JoeProBono]

Calculating the weight of monoliths

In the cases of the smaller monoliths it may be possible to weigh them. However in most cases the monoliths were too large or they may have been part of an ancient structure so this method could not be used. The weight of a stone can be calculated by multiplying its volume and density. The density of most stones is between two and three tons per cubic meter. The average weight of granite is about 2.75 metric tons per cubic meter, limestone 2.3 metric tons per cubic meter, sandstone or marble 2.5 tons per cubic meter. Some softer stones may be lighter than 2 tons per cubic meter like volcanic tuff or basalt which weighs about 1.9 tons per cubic meter. Since the density of most of these stones fluctuates it is necessary to know the source for the stone and volume to obtain accurate measurements

[9YearLurker]

I think that’s the weight of a locomotive. The engine within such a locomotive is only about 30,000 pounds or 15 tons.