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Hardness Scale Mineral Collection

2 Items
$17.65 - $33.95 View Details

This collection of 9 minerals represents the scale of hardness #1 through #9. The 1" specimens are number coded and keyed to a list. The collection is stored in a compartmented container. This collection is also available with a diamond specimen, representing hardness #10.

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This collection of 9 minerals represents the scale of hardness #1 through #9. The 1" specimens are number coded and keyed to a list. The collection is stored in a compartmented container. This collection is also available with a diamond specimen, representing hardness #10.
 
 
Carolina Biological Supply

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