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
References
| ||||||||||||||||||||||||||||||||
This article is issued from Wikipedia - version of the Wednesday, January 13, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.