For the Majority of Minerals,the Streak Color Obtained When the Mineral

question 1

Multiple Choice

For the majority of minerals,the streak color obtained when the mineral is scratched against a porcelain plate is ____________.

• A) likely to be diagnostic only if the mineral is hard enough to scratch porcelain
• B) more variable than the color in hand sample among crystals
• C) less variable than the color in hand sample among crystals
• D) always dark brown or black

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Definitions:

Sediment

Particles of rock, organic material, or minerals that are transported and deposited by wind, water, or ice, often forming sedimentary layers.

Hydroelectric Dam

A structure built across a river to hold back water for the purpose of generating electricity through the movement of water.

Permeable Rocks

Rocks that have connected spaces or pores, allowing fluids to pass through them, critical in the study of groundwater flow and hydrocarbon reservoirs.

Faults and Fractures

Breaks in the Earth's crust where blocks of the crust have moved relative to each other due to tectonic forces.