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Predictive Mineralogy

Possible unrecorded species at La Plata Mining District (California Mining District), La Plata County, Colorado, USA

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
KotulskitePd(Te,Bi)2-x (x β‰ˆ 0.4)94.41%Merenskyite (53.06 %), Sopcheite (88.10 %)
GypsumCaSO4 Β· 2H2O92.78%Melanterite (53.56 %), Pickeringite (55.31 %), Szomolnokite (65.22 %)
MicheneritePdBiTe76.91%Merenskyite (51.53 %), Sopcheite (52.38 %)
ClausthalitePbSe75.00%Bohdanowiczite (75.00 %)
SperrylitePtAs274.48%Merenskyite (67.86 %), Sopcheite (78.57 %)
Pentlandite(NixFey)Ξ£9S873.90%Merenskyite (70.92 %), Sopcheite (73.81 %)
MoncheitePt(Te,Bi)269.52%Merenskyite (50.00 %), Sopcheite (73.81 %)
BismuthiniteBi2S359.25%Ourayite (59.26 %)
OrpimentAs2S358.52%Realgar (58.53 %)
SmithsoniteZnCO355.58%Hemimorphite (55.59 %)
NaumanniteAg2Se55.35%Bohdanowiczite (55.36 %)
FrohbergiteFeTe252.00%Montbrayite (52.00 %)
TellurobismuthiteBi2Te352.00%Montbrayite (52.00 %)
AutuniteCa(UO2)2(PO4)2 Β· 10-12H2O51.51%Torbernite (51.52 %)
VysotskitePdS50.00%Sopcheite (50.00 %)
ZirconZr(SiO4)45.46%Xenotime-(Y) (56.84 %)
MilleriteNiS41.90%Sopcheite (52.38 %)
Hollingworthite(Rh,Pt,Pd)AsS40.00%Sopcheite (50.00 %)

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: Aikinite, Argentotennantite-(Zn), Betekhtinite, Bohdanowiczite, Calaverite, Coloradoite, etc.
1,867
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Unique: Cattierite, Luzonite
160
47g : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Halogen-bearing surface weathering minerals]

Unique: Bromargyrite, Chlorargyrite
158
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]

Unique: Halloysite
100
37 : Layered igneous intrusions and related PGE minerals20
47e : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Vanadates, chromates, manganates]16
45b : Oxidized fumarolic minerals (see also [#11]) - [Other oxidized fumarolic minerals]15
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)14
6 : Secondary asteroid phases14
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]14
49 : Oxic cellular biomineralization (see also #44)11
31 : Thermally altered carbonate, phosphate, and iron formations11
7 : Ultramafic igneous rocks11
47c : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Carbonates, phosphates, borates, nitrates]10