When it comes to gemstones, diamonds are often considered the hardest and most durable of all. However, many people wonder what gemstone comes second in terms of hardness. The answer to that question is the moissanite.

Moissanite is a rare mineral that was first discovered in 1893 by a French scientist named Henri Moissan. It is composed of silicon carbide and is known for its remarkable brilliance and fire. In fact, moissanite is often used as a diamond alternative in engagement rings and other jewelry pieces due to its striking resemblance to diamonds.

One of the main reasons why moissanite is considered the second hardest gemstone is because of its rating on the Mohs scale of mineral hardness. This scale, developed by Friedrich Mohs in 1812, measures a mineral's resistance to scratching. Diamonds have a perfect 10 on the Mohs scale, while moissanite comes in at a close second with a rating of 9.25.

What makes moissanite so durable is its crystal structure. It is composed of tightly bonded carbon and silicon atoms, which make it incredibly resistant to scratches and abrasions. This hardness also ensures that moissanite retains its brilliance and sparkle over time, making it a popular choice for those seeking a long-lasting gemstone.

In addition to its hardness, moissanite also has other desirable qualities. It has a high refractive index, meaning that it has more sparkle and brilliance than most other gemstones. It also withstands high temperatures and is resistant to thermal shock, making it a suitable choice for jewelry that may be exposed to heat.

Overall, while diamonds may be the hardest gemstone, moissanite is a close second. Its hardness, brilliance, and durability make it an excellent choice for anyone looking for a stunning and long-lasting gem. Whether as a diamond alternative or a standalone gemstone, moissanite is a valuable addition to any jewelry collection.

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