Geologists May Choose to Lick a Mineral to Identify It

question 17

Multiple Choice

Geologists may choose to lick a mineral to identify it.What mineral is the geologist expecting with this test?

• A)a sulfide bearing rock which will taste like rotten eggs
• B)NaCl (halite)or KCl (sylvite)
• C)None,it clears the dust off the sample so he/she can see if more clearly.
• D)None,they are clearing the hydrochloric acid from the sample to rerun a test for calcite.

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Definitions:

Visual Perception

The ability to interpret and make sense of visual stimuli from the environment through the eyes and brain, encompassing processes such as recognition and interpretation.

Trichromatic Theory

A theory of color vision that proposes humans perceive color through the relative rates of response by three kinds of cones, each one sensitive to a different color.

Hair Cells

Sensory receptors located in the cochlea that detect sound waves and transduce them into signals that ultimately are processed in the brain as sound.

Hearing

The process by which sound waves are interpreted by the brain, allowing individuals to perceive sound.