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Predictive Mineralogy

Possible unrecorded species at Continental Pit, Butte Mining District (Summit Valley Mining District), Silver Bow County, Montana, 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
CalciteCaCO399.93%Cerussite (50.77 %), Cornwallite (50.24 %), Digenite (52.28 %), Hydrozincite (67.58 %), Jarosite (50.12 %), Rhodochrosite (50.69 %), Siderite (52.18 %), Smithsonite (59.90 %), Stellerite (62.26 %)
OliveniteCu2(AsO4)(OH)74.16%Cornwallite (74.16 %)
PseudomalachiteCu5(PO4)2(OH)459.29%Libethenite (59.30 %)
HemimorphiteZn4Si2O7(OH)2 Β· H2O52.66%Hydrozincite (52.67 %)
BrochantiteCu4(SO4)(OH)652.15%Cornwallite (52.15 %)
ScheeliteCa(WO4)48.22%Powellite (60.29 %)
BaryteBaSO441.33%Cornwallite (51.67 %)

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
47c : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Carbonates, phosphates, borates, nitrates]

Unique: Smithsonite
123
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])

Unique: Enargite
101
10 : Basalt-hosted zeolite minerals

Unique: Stellerite
100
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]36
47d : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Arsenates, antimonates, selenates, bismuthinates]12
53 : Other minerals with taphonomic origins10
45b : Oxidized fumarolic minerals (see also [#11]) - [Other oxidized fumarolic minerals]10
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]7
50 : Coal and/or oil shale minerals7
54 : Coal and other mine fire minerals (see also #51 and #56)7
48 : Soil leaching zone minerals4
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)4
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)4