Multiple Choice
For most minerals, the streak color obtained when the mineral is scratched against a porcelain plate is
A) only useful if the mineral is softer than porcelain.
B) more variable than the color in a hand sample among crystals.
C) not useful because the porcelain will often chemically react with the mineral.
D) always dark brown or black.
Correct Answer:
Verified
Correct Answer:
Verified
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