# Menilite

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Form of opal

Menilite

Menilite

**Menilite** is a greyish-brown form of the [mineraloid](/source/Mineraloid) [opal](/source/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](/source/M%C3%A9nilmontant) ([Paris](/source/Paris)), [France](/source/France),[1] where it occurs as [concretions](/source/Concretion) within [bituminous](/source/Bituminous) [Early Oligocene](/source/Early_Oligocene) [Menilite Shales](https://en.wikipedia.org/w/index.php?title=Menilite_Shale&action=edit&redlink=1).

## See also

- [Geyserite](/source/Geyserite)

- [Hyalite](/source/Hyalite)

## References

1. ^ [***a***](#cite_ref-Mindat_1-0) [***b***](#cite_ref-Mindat_1-1) [Menilite on Mindat.org](http://www.mindat.org/min-9796.html)

v t e Silica minerals Crystalline Coesite Cristobalite Keatite Moganite Quartz Seifertite Stishovite Tridymite Cryptocrystalline Chalcedony Chert Flint Jasper Amorphous Fulgurite Lechatelierite Opal Miscellaneous Tiger's eye Aqeeq Notable varieties Chalcedony Agate Carnelian Chrome chalcedony Chrysoprase Heliotrope Moss agate Onyx Opal Fiorite Geyserite Quartz Amethyst Ametrine Herkimer diamond Citrine Smoky quartz Shocked quartz Prasiolite Minerals portal

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