Green Onyx deposits are found in Nations everywhere in the Global, including Argentina, Australia, Brazil, India, Botswana, Madagascar, Mexico, Myanmar (Burma), Pakistan, Sri Lanka, Uruguay, and the USA.
It ought to no longer be harassed with Onyx Marble, which is Limestone. The banding of Onyx is parallel and regular. a few forms of onyx vary in coloration, inclusive of sardonyx, which has a brown base and white upper layer, carnelian onyx, which has a pink base and white top layer, and Niccolo onyx, which has a very thin top layer, permitting the black base color to expose via as gray or blue Onyx become reduce and carved as a gemstone with the aid of the ancient Greeks and Romans in cameos. Intaglio etchings (poor alleviation engravings) were also crafted from onyx. these carvings exhibit the banding of onyx.