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shottheradio wrote:What is true onyx? I'm not talking about Onyx marble/mexican onyx. True onyx, I always thought was black and white banded chalcedony? true or false?
Caverdale wrote:shottheradio wrote:What is true onyx? I'm not talking about Onyx marble/mexican onyx. True onyx, I always thought was black and white banded chalcedony? true or false?
My understanding from college minerology classes was that onyx was banded chalcedony, but the bands can be of any colors. In fact, I think black and white only is unusual, but I'm often wrong.
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