Where does black onyx come from?

Answer Black onyx is a mineral popular for jewelry uses found worldwide. The main mining locations are in Brazil, India, Uruguay and California. The mines in Brazil produce onyx of the highest quality.Sou... Read More »

Top Q&A For: Where does black onyx come from

Are black diamonds&black onyx the same stone?

Black diamonds and black onyx are two very different stones. Black diamonds are a form of diamond called Carbonado that actually has formed in stellar supernovae explosions. Onyx (and black onyx) i... Read More »

Difference Between Black Onyx & Black Sapphire?

Black onyx and black sapphire have very different properties, even though they are similar in color. Careful observation can sometimes determine if a black stone is an onyx or a sapphire, but a gem... Read More »

Where is black onyx mined?

Typically found in bands with white onyx, black onyx is mined in the United States in Colorado, Idaho, Montana, Rhode Island, South Dakota, Utah, Virginia and Wyoming. Locations of international mi... Read More »

Can black onyx be baked?

On One Hand: Onyx Used in StonewareBlack onyx is frequently used in stoneware which is, in turn, used in baking. Stoneware dishes made from black onyx are often designed specifically for the purpos... Read More »