The paper is aimed at revealing the potential of digital twin concept use in relation to mining companies' assets management. The key advantages of digital twin implementation in different areas of mining production have been summarized. Improved operation efficiency, production safety and informed decision-making process are among the top ones. The paper presents the conceptual model of digital twin of a deposit, which reflects both its structure and functioning mechanism. The idea of digital mineral asset underpins it in conjunction with tools of historical and real-time data collection, storage and analysis. The key issues of economic evaluation of mineral deposit digital twin are addressed.