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Predictive Mineralogy

Possible unrecorded species at Akasaba Mine (Obaska Mine), Val d'Or, La Vallée-de-l'Or RCM, Abitibi-Témiscamingue, Québec, Canada

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
QuartzSiO299.99%Actinolite (69.88 %), Andradite (57.74 %), Argentopentlandite (67.86 %), Chalcopyrite (67.26 %), Cobaltite (70.11 %), Coloradoite (73.79 %), Epidote (69.84 %), Gold (52.20 %), Hedleyite (78.95 %), Hessite (75.85 %), Magnetite (50.54 %), Molybdenite (66.37 %), Pyrite (67.27 %), Pyrrhotite (67.51 %), Sphalerite (67.53 %), Tellurobismuthite (79.77 %)
CalciteCaCO399.04%Actinolite (55.10 %), Andradite (61.21 %), Cobaltite (51.81 %), Epidote (51.60 %), Hedleyite (52.63 %), Tellurobismuthite (50.15 %)
GalenaPbS79.99%Argentopentlandite (76.19 %), Chalcopyrite (51.07 %), Cobaltite (57.74 %), Coloradoite (63.59 %), Hedleyite (68.42 %), Hessite (72.55 %), Sphalerite (74.68 %), Tellurobismuthite (68.33 %)
BismuthBi75.18%Hedleyite (75.19 %)
ArsenopyriteFeAsS64.66%Hedleyite (64.66 %)
PetziteAg3AuTe254.85%Coloradoite (54.85 %)
AltaitePbTe44.66%Coloradoite (55.83 %)
IlmeniteFe2+TiO340.95%Argentopentlandite (51.19 %)

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
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Unique: Coloradoite, Hessite, Tellurobismuthite
100
37 : Layered igneous intrusions and related PGE minerals5
31 : Thermally altered carbonate, phosphate, and iron formations4
36 : Carbonatites, kimberlites, and related igneous rocks4
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)1
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)0
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)0
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies)0
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)0
6 : Secondary asteroid phases0
7 : Ultramafic igneous rocks0