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Biology 8 Online
OpenStudy (anonymous):

is the resistance of a mineral to being scratched? A. cleavage B. streak C. luster D. hardness

OpenStudy (anonymous):

D. The resistance of a mineral from being scratched is known as hardness. This hardness varies in different minerals depending on how they are scratched; length-wise or across.

OpenStudy (anonymous):

please give metals to ones with best response!

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