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Posted by on Tuesday, November 4, 2008 at 8:35pm.

What test is performed to determine the hardness of a mineral?

  • Earth Science-9 - , Tuesday, November 4, 2008 at 8:42pm

    The Rockwell test is very common in laboratories http://en.wikipedia.org/wiki/Rockwell_scale

  • Earth Science-9 - , Tuesday, November 4, 2008 at 8:46pm

    look up the MOHS Hardness scale; it consists of ten minerals ranging from the softest (#1 - talc) to the hardest (#10 - diamond)
    harder minerals will scratch softer ones.
    a fingernail has a hardness of about 2.5, while a penny's is 3.5

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