You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Institute_of_technology

Context:
The world's first Institute of Technology the Berg-Schola (Bergschule) established in Selmecbánya, Kingdom of Hungary by the Court Chamber of Vienna in 1735 providing Further education to train specialists of precious metal and copper mining. In 1762 the institute ranked up to be Academia providing Higher Education courses. After the Treaty of Trianon the institute had to be moved to Sopron.

Question:
What kind of mining did the world's first institute of technology prepare students for?

copper