Mineral name
|
Hydroniumpharmacoalumite
| 
Individual crystals are up to 0.5 mm on edge, although crystals are more commonly ~0.25 mm across and occur in patchy aggregates several millimetres across. |
Hölzel-No.
|
8.DI.220 |
Type of specimen
|
HT |
IMA-No. / Accepted
|
2012-050 |
Chemical formula
|
(H3O)Al4[(OH)4(AsO4)3]·4-5 H2O |
Type locality
|
Spain, Andalusia, Rodalquilar, Maria Josefa mine |
Associated minerals
|
Natropharmacoalumite, alunite, jarosite, scorodite, native gold, goethite |
Collection
|
Museum Reich der Kristalle - Mineralogische Staatssammlung München |
Contact person
|
Dr. Melanie Kaliwoda |
Catalogue−No. / Site
|
MSM 33887 |
Nature of
type specimen
|
Mineral specimen |
References
Hydroniumpharmacoalumite, (H3O)Al4[(OH)4(AsO4)3]·4-5 H2O, a new mineral of the pharmacosiderite supergroup from Rodalquilar, Spain.
Hochleitner, R., Fehr |
Notes / Further information
Hydroniumpharmacoalumite cannot be distinguished by means of simple methods from natropharmacoalumite. Crystals of hydroniumpharmacoalumite are generally smaller than those of natropharmacoalumite and normally grow as a second generation. |
|
