Ores

A mineral (ex. pyrite FeS2) can be an ore.

• True

• False

Always/Sometimes/Never: Minerals are the valuable component in ores.

• Always

• Sometimes

• Never

The Earth's core is an ore deposit because it is made of iron and nickel according to studies.

• True

• False

Which is directly attributed to the formation of sedimentary rocks?

• melting

• volcanism

• tectonic pressure

• lithification

Which could be confirmed about porphyry copper ore?

• It would have two distinct grain sizes.

• It would be coarse-grained.

• It would be fine-grained.

• It would be made of only copper.

What term is also known as the process of crushing of ores?

• discombabilation

• milling

• mineral extraction

• leaching

Ores are nonrenewable resources.

• True

• False

Which is NOT true about felsic rocks?

• They are light-colored.

• They would contain feldspar minerals.

• They have high densities.

• They are rich in aluminum and silicon.

What do you call solid materials (valuable minerals) left behind on a rock when water evaporates?

• solutes

• mineraloids

• crystals

• precipitates

The Philippine Government office in charge of inspecting mining activities in the country is the MGB. What does MGB stand for?

• Mining and Geology Bureau

• Mines and Geosciences Bureau

• Mining Geosites Branch

• Mineralogy and Geology Bureaucracy