The following questions are from the “Microsoft Rewards Bing Warpspeed Quiz” for 9-18-2025. Test your knowledge of dazzling gemstones with our quiz.
Question 1: Which is the hardest gemstone on the Mohs scale?
- Citrine
- Diamond
- Opal
Answer: Diamond
Fact: The hardest gemstone on the Mohs scale is Diamond. It ranks 10, which is the highest level of hardness. This means it can scratch all other gemstones. Citrine and Opal are much softer compared to Diamond. That’s why Diamond is often used in cutting tools and jewelry.
Question 2: Which ranks higher on the Mohs scale: a Herkimer diamond or a ruby?
- They’re the same hardness
- Herkimer diamond
- Ruby
Answer: Ruby
Fact: Ruby ranks higher on the Mohs scale than a Herkimer diamond. A ruby has a hardness of 9, while a Herkimer diamond, which is actually a type of quartz, has a hardness of 7.
So, ruby is much harder and more resistant to scratches. Even though Herkimer diamonds look like real diamonds, they are not as hard.
Question 3: What would a jeweler use the Mohs scale for?
- To see if a gemstone fades in sunlight
- To see how durable a gem is for daily wear
- To see a gemstone’s weight
Answer: To see how durable a gem is for daily wear
Fact: A jeweler uses the Mohs scale to check how hard a gemstone is. It helps them know if the gem can resist scratches or damage during daily wear. A higher number means the gem is harder and more durable. This helps in choosing the right gem for rings, bracelets, or other jewelry.
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