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Predictive Mineralogy

Possible unrecorded species at Ban Group, Formazza, Verbano-Cusio-Ossola Province, Piedmont, Italy

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
MagnetiteFe2+Fe3+2O480.36%Actinolite (53.38 %), Ilmenite (57.89 %)
ChalcopyriteCuFeS279.68%Actinolite (52.26 %), Dickite (54.00 %), Galena (56.79 %), Pyrite (51.72 %), Pyrrhotite (76.22 %), Sphalerite (63.80 %)
CerussitePbCO358.77%Wulfenite (58.77 %)
Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)56.31%Clinozoisite (56.31 %)
KaoliniteAl2(Si2O5)(OH)450.40%Dickite (50.40 %)

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
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]

Unique: Wulfenite
100
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)22
31 : Thermally altered carbonate, phosphate, and iron formations14
26 : Hadean detrital minerals5
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)4
28 : Photo-alteration, pre-biotic4
36 : Carbonatites, kimberlites, and related igneous rocks3
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies)3
19 : Granitic intrusive rocks2
38 : Ophiolites2
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)2