Minerals Collection,Set Of 24

Description

Open pit mining often results in a large hole or pit being formed in the process of extracting a mineral. Deposits mined by open pit techniques are generally divided into horizontal layers called benches. The thickness of the benches depends on the type of deposit & the mineral being mined. Mining is generally conducted on a number of levels at any one time.

Description

Showing inner, outer material and formation of the Earth.

Description

Showing ideal features of landscape to teach the formation of particular geographical terms.

Description

For investigation of geographical and geological features. Eight landform models join to form a continuous model showing the mountains, lakes, rivers, deserts, glaciers, coastlines, cayons and cultural point, with lesson plan, size 90 x 90 cm.