Respuesta :
The above-mentioned method is used to analyze the streak of a mineral. Streak can be different from that of the color of the mineral, itself. It is used for soft minerals, and such minerals have their characteristic streaks. So the correct answer to your question is D.
Answer: Streak
Explanation: The streak test is done by scraping a specimen of the mineral across a piece of unglazed porcelain known as a "streak plate."