Is Quartz Harder Than Ruby? Comparing Their Mohs Hardness

Discover why ruby is harder than quartz according to the Mohs scale, and which gemstone is more durable for everyday use.

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Ruby is harder than quartz. On the Mohs scale of mineral hardness, quartz scores a 7, while ruby, a form of corundum, scores a 9. This means ruby can scratch quartz but not the other way around, making it a superior option for durability**.

FAQs & Answers

  1. What is the Mohs scale of mineral hardness? The Mohs scale ranks minerals based on their ability to scratch one another, ranging from 1 (softest) to 10 (hardest).
  2. Why is ruby harder than quartz? Ruby is a form of corundum and has a Mohs hardness of 9, making it harder than quartz, which has a hardness of 7.
  3. Can quartz scratch ruby? No, quartz cannot scratch ruby because quartz is softer on the Mohs scale.
  4. Which gemstone is better for durable jewelry, quartz or ruby? Ruby is generally more durable due to its higher hardness rating, making it a better option for jewelry that withstands daily wear.