Description
Remarkable biterminated chlorite quartz of the “doppelender” type from the Griserental in the canton of Uri, Switzerland.
A flawless specimen.
Mineral from the Valentin Sicher collection, a video of which is shown below:
This post is also available in:









![Mineralogy of France [livre]](https://www.minerals-and-crystals.com/wp-content/uploads/2016/01/mineraux-france-324x324.jpg)




