The color changing Sapphire in Corundum is real, it will appear different colors in different light, also known as color changing corundum or color treasure, the color change is expected to be caused by the chrome element in corundum.
The difference between Garnet and similar gem and synthetic garnet. Gemstones similar in colour to various garnets, including rubies, sapphires, artificial corundum, topaz, emeralds, Jadeite, etc. , are heterogeneous and can be distinguished by polarisation.
Gem bound all kinds of gem grade corundum beyond ruby are called sapphire. Sapphire mineral name for corundum, corundum group minerals.
TSAVORITE (TSAVORITE) chemical name is chrome vanadium calcium aluminum garnet, because contains trace amounts of chromium and vanadium, delicate Emerald Green, pleasing to the eye. Kenya’s Shafe National Park was discovered by geologist Campbell Brydges in the late 1960s.
Amethyst is a tripartite crystal system, the crystal is hexagonal columnar, the cylindrical surface is transverse, there are left shape and right shape, twin-crystal is very common. The hardness is 7. The crystal often contains irregular or winged gas-liquid inclusions.
Description:Ruby is a precious gemstone that is known for its vibrant red color. It is a variety of the mineral corundum, which also includes sapphires. The color of ruby is caused by the presence of chromium within the stone. Ruby is a highly prized gemstone that has been treasured for centuries for its beauty and rarity. It is also known for its durability, with a hardness rating of 9 on the Mohs scale, which makes it a popular choice for jewelry. Ruby is often associated with love, passion, and vitality, and it is a popular choice for engagement rings and other romantic gifts.
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Citrine varies in color from yellow to light brown and is easily confused with citrine. The yellow color in citrine is due to the presence of iron oxide in water. Natural citrine is scarce and produced in few places, with only Brazil and Madagascar producing high-quality Citrine in limited quantities.
The common color of diopside is blue-green to yellow-green, brown, yellow, purple, colorless to white. Luster for glass luster. If chromium is present in diopside, the mineral has a green tinge, so diopside gems are often confused with other gems such as yellow-green olivine, (green) tourmaline, and chrysoberite, which of course depend on other physical differences between the minerals to distinguish them.
Agate is a kind of chalcedony mineral, often mixed with opal and cryptocrystalline quartz banded block, hardness 6.5-7 degrees, specific gravity 2.65, color is quite hierarchical. Having translucency or opacity.
Topaz is pure transparent but often opaque due to impurities in it. Topaz is typically wine-colored or pale yellow. But it could be white, gray, blue, green. Colorless topaz, when well cut, can be mistaken for a diamond.
Tourmaline has complex composition and color. The international jewelry industry is basically divided into commercial varieties according to the color of tourmaline, and the more colorful the color, the higher the value.
Yellow sapphire is also known as topaz in business. A variety of yellow gem grade corundum. The color ranges from light yellow to canary yellow, golden yellow, honey yellow and light brown yellow, with golden yellow being the best. Yellow is generally associated with the presence of iron oxide.