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Thread: What is the Sp Gr of Your Best Arkansas Stone

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  1. 06-23-2014, 04:17 PM #1
    thebigspendur
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    I'm not sure what specific gravity has to do with hardness. Specific Gravity deals with density. Lead and Gold have high specific gravity however they are very soft materials.
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  2. 06-23-2014, 05:13 PM #2
    Neil Miller
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    Quote Originally Posted by thebigspendur View Post
    I'm not sure what specific gravity has to do with hardness. Specific Gravity deals with density. Lead and Gold have high specific gravity however they are very soft materials.
    You want to have a look at Dans Whetstone Site

    The Specific Gravity range is set by the US Government, who assign soft and hard values.

    They (and Dan, a trained geologist) ought to know what they are talking about...

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    Neil
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