Mineral mining

Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Industry: Mining

Contributors in Mineral mining

Mineral mining

A dust-sampling apparatus almost identical in principle and design with the regular Greenburg-Smith impinger, the main difference being its smaller size and the fact that only a 12-in (30.5-cm) head ...

Soxhlet thimble

Mining; General mining

A dust-sampling instrument. The apparatus gives a gravimetric mass sample, with no information on the size distribution of the dust collected. Is useful where a sample is needed for determining mass ...

Ecosystem

Mining; General mining

A dynamic community of biological organisms, including humans, and the physical environment with which they interact.

Lutecite

Mining; General mining

A fibrous variety of chalcedony with fibre elongation perpendicular to the c crystallographic axis (opposite to normal chalcedony) and showing other optical anomalies.