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Pattern

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Hardness Scale

10

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StarStarStarStar

Talc

StarStarStarStar

1 (Softest)

StarStarStarStar

Corundum

StarStarStarStar

9

StarStarStarStar

Calcite

StarStarStarStar

3

StarStarStarStar

Fluorite

StarStarStarStar

4

StarStarStarStar

Quartz

StarStarStarStar

7

StarStarStarStar

Diamond

StarStarStarStar

10 (Hardest)

StarStarStarStar

Orthoclase

StarStarStarStar

6

StarStarStarStar

Gypsum

StarStarStarStar

2

StarStarStarStar

Topaz

StarStarStarStar

8

StarStarStarStar

Apatite

StarStarStarStar

5

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