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Predictive Mineralogy

Possible unrecorded species at Acfer 059/El Djouf 001 meteorites, Bordj Badji Mokhtar, Bordj Badji Mokhtar District, Bordj Badji Mokhtar Province, Algeria

This table is based on statistical analysis of other localities containing similar species to the ones found at this locality.

Possible missing speciesFormulaMatch %Due to recorded presence of
QuartzSiO296.59%Ilmenite (52.06 %), Magnetite (50.54 %), Pyrrhotite (67.51 %), Saponite (55.74 %)
IronFe96.33%Grossite (54.55 %), Schreibersite (91.94 %)
DiopsideCaMgSi2O695.17%Grossite (77.27 %), Hibonite (55.43 %), Perovskite (52.40 %)
PyriteFeS291.79%Pentlandite (58.72 %), Pyrrhotite (80.12 %)
TroiliteFeS91.56%Grossite (50.00 %), Schreibersite (83.12 %)
CalciteCaCO385.11%Perovskite (58.08 %), Saponite (64.48 %)
ChalcopyriteCuFeS275.00%Pentlandite (73.72 %), Pyrrhotite (76.22 %)
Taenite(Fe,Ni)69.77%Schreibersite (69.77 %)
Augite(CaxMgyFez)(Mgy1Fez1)Si2O659.09%Grossite (59.09 %)
SphaleriteZnS44.31%Pyrrhotite (55.40 %)

Key: Mineral matches key element mineralogy of deposit Key element(s) in mineral not listed for deposit (-20% score)


Predicting paragenetic modes of deposit

Green indicates almost certain match based on minerals unique to a certain deposit type. Yellow indicates a possibly poor match, but should not be entirely discounted. Scores > 100 indicate strong confidence.

Paragenetic ModeScore
6 : Secondary asteroid phases

Unique: Breunnerite
100
3 : Solar nebular condensates (CAIs, AOAs, URIs)13
51 : Pyrometamorphic minerals (see also #54 and #56)12
13 : Hadean serpentinization2
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)2
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]2
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)1
1 : Stellar atmosphere condensates1
31 : Thermally altered carbonate, phosphate, and iron formations1
4 : Primary chondrule phases1
5 : Primary asteroid phases1