Industrial minerals and rocks /

Rock Geochemistry in Mineral Exploration.

Hardness estimation of minerals, rocks and ceramic materials /

Rock...rock...rock. /

Mineral deposits of the world. : Ores, industrial minerals and rocks. /

Rock mapa.

Rock and Roll /

Rock of the Westies

Monsters of rock /

Sedimentary Rocks /

Anchoring in rock /

The alkaline rocks /

Classics in Rock

Rock : Interpreten, Autoren, Sachbegriffe /

Feuer-rock /

Rock Hard.

Rock and roll /

Rock Gardens.

Rock & pop.

Rock planet.

Rocks, Minerals and Gemstones /