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Predictive Mineralogy

Possible unrecorded species at Hoei mine (Hooei mine; Houei mine), Bungo-Ono City, Oita Prefecture, Japan

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
DiopsideCaMgSi2O677.62%Malayaite (54.76 %), Wollastonite (50.54 %)
MuscoviteKAl2(AlSi3O10)(OH)277.57%Stannite (52.91 %), Varlamoffite (52.38 %)
MagnetiteFe2+Fe3+2O457.68%Andradite (57.68 %)
SideriteFeCO352.38%Franckeite (52.38 %)
DolomiteCaMg(CO3)250.17%Kutnohorite (50.18 %)
Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)50.00%Malayaite (50.00 %)
ScheeliteCa(WO4)43.80%Malayaite (54.76 %)

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: Franckeite, Herzenbergite
216
31 : Thermally altered carbonate, phosphate, and iron formations

Unique: Malayaite
101
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Unique: Kutnohorite
100
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)14
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]13
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]12
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)4
15 : Black/white smoker minerals and other seafloor hydrothermal minerals4
36 : Carbonatites, kimberlites, and related igneous rocks1
38 : Ophiolites1
26 : Hadean detrital minerals1
34 : Complex granite pegmatites1
37 : Layered igneous intrusions and related PGE minerals1