For the Majority of Minerals,the Streak Color Obtained When the Mineral

Multiple Choice

For the majority of minerals,the streak color obtained when the mineral is scratched against a porcelain plate is ____________.

A) likely to be diagnostic only if the mineral is hard enough to scratch porcelain
B) more variable than the color in a hand sample among crystals
C) less variable than the color in a hand sample among crystals
D) always dark brown or black