Similarities And Differences: Ruby And Sapphire Gemstones

 Rubies and sapphires, both are extremely expensive gemstones. On the front of hardness or rigidness, both rubies and sapphires are on the same page. The hardness of ruby stone is 9.0 on the Mohs scale (a standard tool which is used to measure the hardness of the gemstones); similarly, the sapphire also possesses the same hardness on Mohs scale 9.0.

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