When you visit Hacker Jewelers, Designers & Goldsmiths, Inc, you will find an informative staff knowledgeable about the type of gemstones we offer and their characteristics. The “hardness rating” of a gemstone is very important and has an effect when creating jewelry, especially rings. The durability of a gemstone is important. For example, some rings, like wedding rings, are worn every day. This makes them vulnerable to thumps and knocks that can be hazardous to a gemstone. Some gemstones are stout enough to be placed in a ring that can be worn day-to-day, other gems are best for rings worn on an infrequent basis, and there are some gems that are not fit to be used in rings at all!
One vital factor in measuring gemstone resilience is hardness. In gemology, a stone’s hardness is gauged on a scale called the Mohs Scale, which allocates minerals a hardness rating between 1 for the softest and 10 for the hardest stones. The Mohs Scale was created in 1822, by a German mineralogist named Frederick Mohs. It characterizes hardness depending on the gem’s scratch-resistance, in which a harder stone will scrape a malleable one, but not in reverse.
Diamonds are rated the hardest with 10, sapphires and rubies follow with 9, spinel, emerald, and topaz 8, quartz, tourmaline, and garnet 7. The supplest stones are talc-1, gympsum-2, calcite-3, and fluorite-4. The margin between harder and softer gemstones is usually given a Mohs rating of 7. Gems with a solidity of 7 or higher is best for rings, hardness ratings below 7 are not.