UM1987-12-SO:AlH
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Formula:
Al3(SO4)2(OH)5 · 9H2O
Crystal System:
Triclinic
Compositionally similar to jurbanite and khademite. Differs in terms of powder X-ray diffraction pattern.
Occurs in form of aggregates of delicate platy crystals, which are unstable under electron beam (WDS mode). Intimately intergrown with gypsum and coexists with other Al and Fe sulfate minerals.
Occurs in form of aggregates of delicate platy crystals, which are unstable under electron beam (WDS mode). Intimately intergrown with gypsum and coexists with other Al and Fe sulfate minerals.
Unique Identifiers
Mindat ID:
51545
Long-form identifier:
mindat:1:1:51545:6
Similar Names
| UM1940-01-SO:AlHP | 2Al2O3 · 4SO3 · P2O5 · 24H2O | |
| UM1959-04-SiO:AlH | ||
| UM1983-19-SiO:AlH | (Al2O3)2-4.5(SiO2)3-5(H2O)0-1.5 | |
| UM1983-20-SiO:AlH | Al2Si2O7 · 4H2O | |
| UM1983-21-SiO:AlH | Al1.25-2Si1-1.2O5.0-0.3H2O | |
| UM1987-13-SO:AlH | Al2(SO4)3 · 12H2O ? | |
| UM2011-14-SO:AlHN | A synonym of Aluminopyracmonite |
Chemistry of UM1987-12-SO:AlH
Mindat Formula:
Al3(SO4)2(OH)5 · 9H2O
Element Weights:
Elements listed:
Crystallography of UM1987-12-SO:AlH
Crystal System:
Triclinic
Comment:
unreliable results of the SCXRD, thus the crystal system not sure
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 11.45 Å | (100) |
| 10.99 Å | (36) |
| 5.72 Å | (22) |
| 4.46 Å | (30) |
| 3.991 Å | (20) |
| 3.347 Å | (27) |
Other Information
Thermal Behaviour:
10.5 mg sample (probably impure): gave a water loss, up to 700 oC, of 42.64 wt%
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for UM1987-12-SO:AlH
mindat.org URL:
https://www.mindat.org/min-51545.html
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References for UM1987-12-SO:AlH
Reference List:
Sabelli, C., Santucci, A. (1987) Rare sulfate minerals from the Cetine mine, Tuscany, Italy. Neues Jahrbuch für Mineralogie - Monatshefte, 1987. 171-182(Abs. in: Jambor, J.L., Bladh, K.W., Ercit, T.J., Grice, J.D., Grew, E.S. (1988): New mineral Names. American Mineralogist: 73: 932)
Localities for UM1987-12-SO:AlH
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Italy | |
| Sabelli et al. (1987) +1 other reference |
