What is Onyx?

 What is Onyx?


What is Onyx? Onyx is a chalcedony mineral with parallel black and white stripes that appears in colors, but on the black market, the uniform type is more popular and sold. Onyx rock is composed of silica deposits in the pores of volcanic lavas. Properties of onyx stone in terms of feature characteristics Size expression:


Hexagonal crystal shape without cleavage with glassy and milky luster, hardness of this mineral 6.5–7 in mouse table, specific gravity 2.55 to 2.70 and refractive index 1.530 to 1.543. The stone is found in most parts of the world, including Argentina, Brazil, India, Botswana, Madagascar, Myanmar, Pakistan, Sri Lanka, southern Mexico, Afghanistan, Uruguay and the United States.

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