On Tuesday, we used several different tools to perform the scratch test on some minerals. The scratch test was used to determine each mineral's hardness.
We used a paper clip, a penny, and our fingernails to test our minerals.
We discovered that Quartz was our hardest mineral and Gypsum was our softest.
We used a paper clip, a penny, and our fingernails to test our minerals. 
We discovered that Quartz was our hardest mineral and Gypsum was our softest. 
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