Where is Onyx found?
Onyx deposits are found in countries all over the world, including Argentina, Australia, Brazil, India, Botswana, Madagascar, Mexico, Myanmar (Burma), Pakistan, Sri Lanka, Uruguay and the USA.
India provide the large and best quantity of Onyx Gemstones.
Colors
Onyx gemstones range in color from a Green, Black and Red Colors. The price of the gemstone usually depends on how appealing the colour is. Since onyx is silicon dioxide, it is related to all of the other types of quartz, especially cryptocrystalline quartz types such as agate, chrysoprase, jasper, carnelian and bloodstone. Onyx can appear similar to schorl tourmaline, black jade, black diamond and jet.
Onyx Treatment
Onyx is usually dyed to enhance its color and produce a uniform hue. Such methods have been used for hundreds of years. A black color is achieved with the use of concentrated honey or sugar solution after heated sulphuric acid treatment. All reputable gemstone suppliers declare any treatment or enhancement.
Onyx Clarity and Cut
Onyx has a waxy to dull luster and is typically opaque. this Gemstones are typically free from inclusions. Due to its bands of color, onyx is often carved into beautiful cameos which maximize the banding. It is also cut into glossy cabochons or faceted. Onyx can also be drilled to make beads or pendants.
Onyx Gemstone jewelry design ideas...