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What are people testing when they scratch a diamond against glass?
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4 votes
What are people testing when they scratch a diamond against glass?

User Neelam Prajapati
by
5.8k points

2 Answers

4 votes

Answer:

Hardness

Explanation:

User Lakeya
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5.6k points
5 votes
if the diamond is real then it will scratch the glass. so you can tell if a diamond is real by seeing if it scratches glass.

User Manoel Stilpen
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5.7k points
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