| Cabrerite | |
| Category: | Arsenate minerals |
| Formula: | NiMg2(AsO4)2·8H2O |
| Strunz: | 8.CE.40 |
| System: | Monoclinic |
| Class: | Prismatic (2/m) (same H-M symbol) |
| Symmetry: | C2/m |
| Unit Cell: | a = 10.205(1), b = 13.377(1) c = 4.7382(4) [Å]; β = 105.057(7)°; Z = 2 |
| References: | [1] |
Cabrerite is an arsenate mineral bearing magnesium and nickel. It is a member of the hörnesite-annabergite series in the vivianite group.
The name Cabrerite has been in use for any annabergite with notable incorporation of magnesium, typically nickel remaining the dominant ion.[2] It was specified to refer to specimens with a Ni:Mg ratio of 1:2 in 2024.[1]