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Menilite

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Menilite
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Menilite

Menilite is a greyish-brown form of the mineraloid opal.[1] It is also known as liver opal or leberopal (German), due to its color. It is called menilite because it was first described from Ménilmontant (Paris), France,[1] where it occurs as concretions within bituminous Early Oligocene Menilite Shales.

See also

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References

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  1. ↑ 1.0 1.1 Menilite on Mindat.org

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