The article describes the main factors in Russian mining-and-geological terminology forming, the function of intensively rising Russian-German industrial, scientific and academic collaboration in mining and metallurgical development in Russia in 18th century. German borrowings in mining, geological and metallurgical terminology as well as German polytechnical terms are analysed. Terminoelements, indicating the belonging to the fields of work are marked, the term structure is analysed. German borrowing terms for nominating occupations, minerals and chemical elements, mineral deposits peculiarities, mine varieties, equipment and installations, materials, alloys and mining-and-metallurgical products are considered.