Fontarnauite | |
Category: | Borate minerals |
Imasymbol: | Fon[1] |
Strunz: | 6.DA.60 |
System: | Monoclinic |
Class: | Prismatic (2/m) (same H-M symbol) |
Symmetry: | P21/c |
Color: | Light brown |
Cleavage: | Perfect |
Mohs: | 2.5 - 3 |
References: | [2] |
Fontarnauite is a relatively recently described, rare sulfate, borate mineral with the chemical formula . It is found in an evaporite boron deposit. It coexists with other evaporite boron minerals, especially probertite. It is monoclinic, crystallizing in the space group P21/c.[3] [4]
It was named for Ramon Fontarnau i Griera, a materials scientist of the University of Barcelona.