The Purpose of Rubbing a Mineral Across an Unglazed Porcelain

question 44

Multiple Choice

The purpose of rubbing a mineral across an unglazed porcelain slab, the streak plate, is:

• A) to remove dirt and corrosion from the mineral so that its true color can be observed.
• B) to observe the color of a mineral in its powdered form.
• C) to remove the atoms of trace impurities that may exist within the structure of the mineral.
• D) to determine if a streak will form on the mineral.

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Definitions:

Blended

A term commonly used to describe a mix or combination of elements, which can refer to education models, food ingredients, or other scenarios where components are mixed.

Available Resources

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A concept in psychology and sociology viewing the family as an interconnected, interdependent group functioning as a single unit.

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