which statement describes the process of find...
which statement describes the process of finding a minerals streak?\na. when you strike it against gypsum, it leaves a scratch.\nb. when you examine its surface, it looks like dull metal.\nc. when you drop a piece of it in acid, a smoky gas is produced.\nd. when you rub it on a white tile, it leaves a black mark.
Answer
# Brief Explanations:
The streak of a mineral is determined by rubbing it on a porcelain streak - plate (a white, unglazed tile). The color of the powder left behind is the mineral's streak. Option A describes hardness testing (scratching against gypsum), option B describes luster, and option C describes a reaction with acid. Only option D describes the process of finding a mineral's streak.
# Answer:
D. When you rub it on a white tile, it leaves a black mark.