ES_U4_D.S._Minerals

Identify the two major elements of the Earth's crust.

• Oxygen & Silicon

• Carbon & Oxygen

• Sand & Silicates

• Silver & Gold

Identify the major group of minerals found on Earth.

• Calcites

• Silicates

• Borides

• Oxides

Criteria for something to be considered a mineral.

• Made of various types of minerals

• Organic, solid, natural

• Liquid, inorganic, consistent chemical composition

• Consistent chemical composition, inorganic, crystalline solid

A student finds that an unidentified mineral sample can scratch gypsum but is unable to scratch quartz. The student has made an observation about which property of the sample?

• reactivity

• density

• hardness

• luster

Which would be the best tools for measuring the density of a mineral?

• a graduated cylinder and a balance

• a metric ruler and metal detector

• a density probe and 500 mL beaker

• a barometer and a balance

The diagram shows a broken crystal of the mineral halite.

The shape of the halite crystal is a direct result of the...

• stream erosion that changed the crystal

• type of surface on which the crystal formed

• temperature at which the crystal formed

• internal arrangement of the atoms in the crystal

The knowledge of which of these can help a scientist in the field determine the name of an unknown mineral?

• Amount of Organic material

• Amount of Inorganic material

• Hardness & Density

• Temperature

According to the Mohs scale, which minerals would be scratched by a steel file with a hardness of 6.5?

• Quartz, Mohs 7

• Calcite, Mohs 3

• Corundum, Mohs 9

• Topaz, Mohs 8

A mineral with a hardness of 6 and a white streak has been found in igneous rocks near Richmond. If the mineral sample has a volume of 3.1cm³ and a mass of 8.37g, what is the density of the mineral?

• 25.9 g/cm3

• 0.37 g/cm3

• 3.1 g/cm3

• 2.7 g/cm3

There are more than 5000 minerals, however less than 100 are major rock-forming minerals. Choose the best example of a major rock-forming mineral:

• Fingerite

• Abelsonite

• Calcite

• Cobaltominate