What is the streak test used for?

1 Answer
Suryin =)
Oct 23, 2015

clue in identifying minerals .

Explanation:

The color of the powder left by a mineral when it is rubbed against a hard, rough surface is called streak. Streak color is use to identify minerals that have a characteristic streak color and are fairly soft. Even though the mineral color may vary, its streak is always the same.

REMEMBER: Streak color is often different from the color of the mineral itself.

Related questions
See all questions in Mineral Identification
Impact of this question
4179 views around the world
You can reuse this answer
Creative Commons License