Durability and Hardness of Alexandrite

Key Points of Alexandrite on the Mohs Scale

• Hardness Level: With a rating of 8.5, Alexandrite is significantly harder than many other popular gemstones. It is more scratch-resistant than softer minerals like quartz (rated at 7) and is just below sapphire and ruby, both of which are rated at 9.
• Durability for Jewelry: This hardness level implies that Alexandrite is durable enough to withstand daily activities when set in jewelry. It can resist scratches and abrasions from substances with a lower hardness rating.
• Care and Maintenance: Despite its hardness, Alexandrite should still be treated with care. It’s resistant to scratches but can still be chipped or cracked upon impact with hard surfaces or materials.
• Comparison with Other Gemstones: Alexandrite’s hardness is close to that of topaz (8) and slightly less than corundum gems (ruby and sapphire). This makes it a robust choice for rings, necklaces, and other jewelry that might be exposed to rough wear.

Understanding the Toughness of Alexandrite

• Toughness Defined: Toughness in gemstones refers to their ability to resist breakage, chipping, or cracking. It’s distinct from hardness, which is the resistance to scratching.
• Alexandrite’s Toughness: Alexandrite has fair to good toughness. Despite its high score of 8.5 on the Mohs scale of hardness, its toughness is not at the highest end of the spectrum. This means that while it is resistant to scratches, it may not be as resistant to sharp blows or sudden impacts.
• Internal Structure Influence: The toughness of Alexandrite can be influenced by its internal crystal structure and any inherent flaws or inclusions. These can create weak points where the gemstone might be more susceptible to damage.

Susceptibility to Breakage

• Handling Impacts: Alexandrite can withstand normal wear but might be vulnerable to hard knocks. Sudden impacts can cause chipping or cracking, especially in areas where the gemstone is more exposed, like in certain ring settings.
• Cut and Shape Factors: The way Alexandrite is cut can influence its susceptibility to breakage. Certain cuts may expose more of the gemstone or create thinner edges, which can be more prone to chipping.
• In summary, while Alexandrite is a relatively hard and durable gemstone, its toughness and susceptibility to breakage are important considerations for owners. This detailed description provides valuable insights for a gemstone website, aimed at guiding buyers and collectors in their appreciation and care for Alexandrite.

Regular Cleaning

Gentle Cleaning Method: Clean Alexandrite with lukewarm water, mild soap, and a soft brush. Harsh chemicals or abrasive materials should be avoided as they can damage the stone.

Rinsing and Drying: After cleaning, rinse the Alexandrite thoroughly with clean water and dry it with a soft, lint-free cloth. Ensure that it’s completely dry before storage or wear.

Frequency: Regular cleaning is recommended to keep the gemstone free from oils, dirt, and residues that can accumulate from everyday activities.

Proper Storage

Separation: Store Alexandrite separately from other jewelry to prevent scratches. Harder gemstones can scratch its surface, even though it has a high rating on the Mohs scale.

Soft Materials: Use a fabric-lined jewelry box or individual soft pouches for storing Alexandrite jewelry.

Environment: Keep Alexandrite away from extreme temperatures and direct sunlight, which could potentially affect its color.

Safe Handling

Careful Wear: Alexandrite should be worn with care. Avoid wearing it during strenuous activities or when working with abrasive substances.

Avoid Impact: Despite its hardness, Alexandrite can be susceptible to chipping on impact. Be mindful of knocks or bumps, especially in vulnerable settings like rings.

Maintenance and Professional Care

Regular Check-ups: Have Alexandrite’s jewelry checked regularly by a professional jeweler. This includes inspecting settings and clasps for security and integrity.

Professional Advice: Consult with a jeweler for any repairs or serious cleaning procedures. They can provide services that are safe for Alexandrite.

Re-evaluation of Treatments: If the Alexandrite has undergone treatments, it may require specific care or re-treatment over time. This should be done under professional guidance.