It was first described in 1858 in either the South Terres mine of Cornwall, England or in Erzgebirge, Saxony, Germany.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: It was first described in 1858 in either the South Terres mine of Cornwall, England or in Erzgebirge, Saxony, Germany. ### Response: .