The Amethyst is thought to be the perfect substitute for a Blue Sapphire because it has the same appearance as one and is transcendental in nature. Purple sapphires are also more expensive than amethysts due to their much greater scarcity. Purple sapphire was known as “Oriental amethyst” in the Middle Ages, and purple quartz was known as “ Occidental amethyst.” In terms of hardness and durability, sapphire is superior to amethyst, which has a Mohs hardness of 9. One of the most significant distinctions between these two stones is their hardness sapphire is the hardness of second to diamond, while diamond is the hardness of first stone. Despite the presence of hematite inclusions in the crystal, black amethyst is actually an amethyst with violet overtones when exposed to light.Īmethysts and purple sapphires are the two most common names for the same type of quartz. Despite the fact that sapphire and tanzanite are also purple gems, it is the gem that is associated with purple. Amethyst crystals are naturally violet and red in color, and blue amethyst occurs naturally in rock formations on Earth, which is just as rare as violet and red amethyst.Īmethyst is a hard and durable gemstone that measures 7 on the Mohs scale. Amethyst has a refractive index of 1.762 as opposed to 1.778 for other gemstones. The color is used instead of Blue Sapphire. Amethyst, or Jamunia as it is commonly known in Hindi, is the gemstone of choice. Sapphire, unlike amethyst, has a Mohs hardness of 9 and is more durable. Amethyst, which has a hardness of 7.5 on average, is a type of quartz crystal. Sapphire is a tough stone with a hardness of second to none. Sapphires are also typically more valuable than amethysts. Amethyst is also typically found in Brazil, while sapphires are found in a number of different locations around the world. Amethyst is typically a deep purple color, while sapphires can be a variety of different colors including blue, yellow, and pink. Sterling silver is designated a fineness of “925.” Pieces with sterling silver may be marked “sterling.”įinishing, or plating, is a common treatment with sterling silver.When it comes to telling amethyst from sapphire, it is all about looking for certain key characteristics.
The alloy is added to pure silver to make the metal more durable, tougher and harder. In order to be called sterling silver, a metal must be made up of a minimum of 92.5% pure silver and 7.5% alloy (meaning other metals), including but not limited to copper and nickel. In fact, Ag, the chemical symbol for silver, comes from a word that means “white and shining.” The surface of silver can boast that shiny, polished appearance, or can be brushed, satin, matte, sandblasted, antiqued or oxidized (chemically blackened).
Sterling silver can be polished to a higher sheen than platinum. The most reflective of all metals (excluding mercury), sterling silver looks stunning by itself and brings out the best hues in an array of colorful gemstones. Sterling silver, also called fine silver, is a beautifully lustrous cool-toned precious metal favored in fine jewelry among other products. View Gemstone Enhancements and Special Care Requirements for important information. Additionally, please note that many gemstones are treated to enhance their beauty.
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