UM1977-07-O:AlCaFeH
A material that is NOT an approved mineral species
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Formula:
Ca(Fe,Al)2O4 · nH2O
n = 11.5 or 5.7 (?); the reported formula has Al>Fe, but this is inconsistent with all 3 empirical formulas given
Colour:
brown
X-Ray-amorphous. As replacement of browmillerite from the Hatrurim Formation, Israel.
Might be taken as a hydrated counterpart of harmunite (and/or dmitryivanovite/krotite).
Compare 'caldecahydrite', UM1977-08-O:AlCaH, UM1977-09-O:AlCaH.
Might be taken as a hydrated counterpart of harmunite (and/or dmitryivanovite/krotite).
Compare 'caldecahydrite', UM1977-08-O:AlCaH, UM1977-09-O:AlCaH.
Unique Identifiers
Mindat ID:
47425
Long-form identifier:
mindat:1:1:47425:6
GUID
(UUID V4):
(UUID V4):
eb783e83-9de6-435f-91dc-8fe95cd67fb9
Physical Properties of UM1977-07-O:AlCaFeH
Colour:
brown
Optical Data of UM1977-07-O:AlCaFeH
Chemical Properties of UM1977-07-O:AlCaFeH
Formula:
Ca(Fe,Al)2O4 · nH2O
n = 11.5 or 5.7 (?); the reported formula has Al>Fe, but this is inconsistent with all 3 empirical formulas given
n = 11.5 or 5.7 (?); the reported formula has Al>Fe, but this is inconsistent with all 3 empirical formulas given
Other Information
Thermal Behaviour:
large endothermic peak below 200oC
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for UM1977-07-O:AlCaFeH
Reference List:
Localities for UM1977-07-O:AlCaFeH
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Middle East | |
Gross, S. (1977): The mineralogy of the Hatrurim formation, Israel: Geol. Survey Israel Bulletin 70, 80p. [Am. Min. 63: 426 (1978) - abstract] |