The Mohs Hardness Scale and Chart for Select Gems
The Mohs hardness scale measures a mineral's resistance to scratching. Find the traditional scale here and a chart of select gems ordered by hardness.
Alexandrite Care and Cleaning Guide - GIA
Alexandrite ranks 8.5 on the Mohs hardness scale. Alexandrite is stable under normal wearing conditions, which means it’s resistant to the effects of heat, light, and common chemicals. Warm, soapy water is always safe for cleaning alexandrite. …
Understanding and Navigating the Alexandrite Hardness Scale
Dec 22, 2023 · Alexandrite, with a commendable rank of 8.5 on the Mohs scale, surpasses Quartz, Orthoclase, and even Topaz in hardness. This high standing contributes to its durability, thereby making it suitable for use in various types of jewelry, including alexandrite rings.
What is Alexandrite? Learn about this rare, color-changing gem
Nov 14, 2024 · Mohs hardness scale: As mentioned earlier, alexandrite is an incredibly durable gemstone, rating 8.5 on the Mohs hardness scale. Compare this to diamonds (10), sapphires (9), rubies (9), topaz (8), emeralds (7.5-8), quartz (7), peridot …
Alexandrite Stone Guide | Alexandrite Meaning, Hardness & Price
Alexandrite is a 8.5 on the Mohs scale, making it suitable for daily wear and resistant to scratches and abrasions. To maintain the beauty and brilliance of alexandrite jewelry, it is recommended to clean the gemstones with mild soap and warm water using a soft brush.
Alexandrite Birthstone Overview | June Birthstones - American Gem Society
With a hardness of 8.5 on the Mohs scale, alexandrite is softer than sapphire and harder than garnet—the other gemstones that can change color. However, due to its scarcity, alexandrite is more valuable than most gemstones, including rubies and diamonds.
Alexandrite Properties and Characteristics - Diamond Buzz
Jun 4, 2021 · Alexandrite is a very durable semi-precious gemstone, 8.5 on the Mohs hardness scale, meaning it is hard enough to survive accidental hits. However, you may want to take special care to prevent such abuse.
Gemstone Hardness | Mohs Scale with Images and Charts - GemSelect
The hardest gemstones (diamonds, rubies and sapphires) get a rating closer to 10 on the Mohs scale, while the softer gemstones (amber, chrysocolla and pearl) are placed closer to 1 (see the entire Mohs index above).
Alexandrite Gemstones - Ross-Simons
Alexandrite is a relatively hard and durable gemstone, ranking 8.5 on Mohs' scale. It's tolerable of everyday conditions and fairly resistant to breakage. As long as the gemstone isn't fractured, it can be cleaned with steam and ultrasonic cleaners; …
Alexandrite Hardness on Mohs Scale: Understanding Its Durability
On the Mohs scale, alexandrite has a hardness of 8.5, making it a relatively durable and rani scratch-resistant gemstone. This places it just below corundum, which includes sapphires and voice rubies, and fandom just above topaz in terms of hardness.