Regents Review #3 - Rocks and Minerals

Front

What process forms quartzite?

Back

Quartzite is formed by the metamorphism of sandstone.

Front

How can you distinguish pyroxene from amphibole?

Back

The most useful property for distinguishing pyroxene from amphibole is the angles of cleavage.

Front

What are the two most abundant elements by mass in Earth’s crust?

Back

The two most abundant elements by mass in Earth’s crust are oxygen and silicon.

Front

What is the size range of pebbles?

Back

Pebbles are sediments that range in size from 0.2 cm to 6.4 cm.

Front

What type of rock forms from the slow cooling of magma?

Back

Granite forms from magma that cooled and solidified at a slow rate.

Front

What is metamorphism?

Back

Metamorphism is the process by which rocks are altered by heat, pressure, and chemically active fluids.

Front

Define sedimentary rock.

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.

Front

What is the difference between clastic and chemical sedimentary rocks?

Back

Clastic sedimentary rocks are formed from fragments of other rocks, while chemical sedimentary rocks form from the precipitation of minerals from solution.

Front

What is the Mohs scale?

Back

The Mohs scale is a scale used to measure the hardness of minerals, ranging from 1 (talc) to 10 (diamond).

Front

What is the significance of cleavage in minerals?

Back

Cleavage refers to the tendency of a mineral to break along flat surfaces, which is an important property for identification.