From Susan Stocklmayer, Perth, Western Australia
In the article “Rapa Nui statues may have been built by small groups”, the important materials utilised for the construction of these numerous and impressive stone statues are referred to only as having originated from “one quarry supplying the rock” (6 December 2025, p 17).
Perhaps this is of no concern to most readers, but to a geologist, the significance of the specific physical attributes of the rocks is clear. Not many other rock types could have retained the carved details of the figures, lots of which originally faced towards the open ocean and did so for hundreds of years. Omitting this detail is rather like eating the cake without enquiring about a piquant ingredient!
