Moonstone Hardness: Is Moonstone Hard Enough for Daily Wear?

Moonstones are unique and beautiful gemstones that are instantly recognizable by their milky, moon-like shimmer.

Because they originate from volcanic activity, they are considered to be part of the "feldspar" family of minerals, which is the most abundant type of mineral on earth.

However, there's nothing common about the moonstone. Once you lay eyes on the opalescent sparkle of a polished moonstone, it's easy to see why the Ancient Greeks believed they were gifts from the goddess of the moon herself.

Moonstone Hardness: How Hard Is Moonstone?

Moonstone has a relatively low score on the hardness scale. Moonstones measure between 6-6.5 on the Mohs hardness scale, making them relatively soft in the world of gemology.

This hardness rating is similar to a common piece of glass, so they are sturdy enough to be used in jewelry-making.

At the same time, they can be easily scratched or broken with enough force. In comparison, diamonds have a hardness rating of 10 and emeralds measure between 7.5-8.

Moonstone on the Hardness Scale When Compared to Other Gemstones

Gemstone hardness is measured on the Mohs scale, which ranks minerals on a scale from 1 (softest) to 10 (hardest) based on their ability to scratch or be scratched by other substances. Here are some common gemstones and their hardness ratings on the Mohs hardness scale:

10: Diamond

9: Corundum (Sapphire, Ruby)

8: Topaz

7.5 to 8: Spinel, Aquamarine, Emerald

7 to 7.5: Tourmaline

7: Quartz (including Amethyst and Citrine)

6.5 to 7.5: Garnet

6.5 to 7: Peridot

6 to 6.5: Moonstone

6: Orthoclase Feldspar

5 to 6: Turquoise

5: Apatite

4: Fluorite

3: Calcite

2: Gypsum

1: Talc

Is Moonstone Hard Enough for Daily Wear?

In general, moonstones are hard enough for daily wear as long as the wearer is careful. If breakage is a concern, consider jewelry with a protective setting, like a bezel or halo setting.

It's best to avoid moonstone rings if you work a lot with your hands, but necklaces and earrings are relatively safe.

To minimize the risk of scratching or breaking your moonstone jewelry, take them off before engaging in risky activities, which can range from contact sports to household chores.

Store them away from hard gemstones and metals, ideally in a cloth bag or lined box to cushion against scratches.

Any pieces that are frequently worn can be cleaned with mild soap and water or a soft cloth to restore their luster.

Here are some considerations:

Susceptibility to Scratches and Damage: Given its relatively low hardness, moonstone can be scratched by harder materials and is more prone to chipping or breaking upon impact.
Setting and Design: Jewelry that protects the moonstone, such as bezel settings, can help reduce the risk of damage. Rings, which are more exposed to impact, might not be the best choice for daily wear, but pendants and earrings are less likely to be damaged.
Maintenance: Regular cleaning and cautious handling will help maintain the stone's appearance. Avoid exposing moonstone to harsh chemicals and extreme temperatures.
Comparative Hardness: Harder gemstones like sapphires (hardness 9) or diamonds (hardness 10) are better suited for daily wear if durability is a primary concern.

In summary, while moonstone can be worn daily, it requires extra care to avoid damage and maintain its beauty.

Is Moonstone Hard Enough to Be an Engagement or Wedding Ring?

Yes, moonstone can be used as an engagement or wedding ring. While it has a Mohs hardness of 6 to 6.5, which makes it softer than traditional choices like diamonds or sapphires, its unique beauty and symbolism can make it a meaningful choice.

To ensure its longevity, consider setting the moonstone in a protective setting, such as a bezel, and handle it with care to avoid scratches and damage. With proper care, a moonstone ring can be a beautiful and cherished symbol of love.