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Predictive Mineralogy

Possible unrecorded species at Valtellina, Sondrio Province, Lombardy, 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
MicroclineK(AlSi3O8)98.03%Columbite-(Fe) (55.92 %), Columbite-(Mn) (62.20 %), Kobeite-(Y) (50.00 %), Olenite (51.72 %), Tapiolite-(Fe) (51.02 %)
AnalcimeNa(AlSi2O6) Β· H2O91.08%Mesolite (52.00 %), Natrolite (56.38 %), Thomsonite-Ca (57.41 %)
NephelineNa3K(Al4Si4O16)89.28%Calzirtite (50.00 %), Mckelveyite-(Y) (50.00 %), Vishnevite (57.14 %)
AikinitePbCuBiS382.94%Friedrichite (63.46 %), Pekoite (53.33 %)
HemimorphiteZn4Si2O7(OH)2 Β· H2O82.03%Aurichalcite (50.47 %), Rosasite (63.74 %)
ErythriteCo3(AsO4)2 Β· 8H2O77.58%Pharmacolite (55.17 %), Picropharmacolite (50.00 %)
AegirineNaFe3+Si2O675.00%Mckelveyite-(Y) (50.00 %), Tiragalloite (50.00 %)
StrontianiteSrCO375.00%Mckelveyite-(Y) (75.00 %)
UvaroviteCa3Cr2(SiO4)371.42%Redledgeite (71.43 %)
AcanthiteAg2S70.58%Argentotennantite-(Zn) (70.59 %)
Ancylite-(Ce)CeSr(CO3)2(OH) Β· H2O66.66%Mckelveyite-(Y) (66.67 %)
Cancrinite(Na,Ca,β—»)8(Al6Si6O24)(CO3,SO4)2 Β· 2H2O64.28%Vishnevite (64.29 %)
SodaliteNa4(Si3Al3)O12Cl64.28%Vishnevite (64.29 %)
DiamondC61.53%Lindsleyite (61.54 %)
Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)558.33%Mckelveyite-(Y) (58.33 %)
MagnesiochromiteMgCr2O457.14%Redledgeite (57.14 %)
AnglesitePbSO454.02%Rosasite (54.03 %)
Uranopilite(UO2)6(SO4)O2(OH)6 Β· 14H2O52.94%Compreignacite (52.94 %)
BaddeleyiteZrO252.27%Calzirtite (52.27 %)
Donnayite-(Y)NaCaSr3Y(CO3)6 Β· 3H2O50.00%Mckelveyite-(Y) (50.00 %)
EdingtoniteBa[Al2Si3O10] Β· 4H2O50.00%Mckelveyite-(Y) (50.00 %)
FluorapatiteCa5(PO4)3F50.00%Mckelveyite-(Y) (50.00 %)
HarmotomeBa2(Si12Al4)O32 Β· 12H2O50.00%Mckelveyite-(Y) (50.00 %)
Neotocite(Mn,Fe,Mg)SiO3 Β· H2O50.00%Tiragalloite (50.00 %)
PyroxmangiteMn2+SiO350.00%Tiragalloite (50.00 %)
SarkiniteMn2+2(AsO4)(OH)50.00%Tiragalloite (50.00 %)
BertranditeBe4(Si2O7)(OH)250.00%Bazzite (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: Argentotennantite-(Zn), Arsenic, Berthierite, Boulangerite, Bournonite, Chalcostibite, etc.
1,295
34 : Complex granite pegmatites

Unique: Bazzite, Microlite Group, Petscheckite, Tapiolite-(Fe), Yttrocolumbite-(Y)
556
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Unique: Ardennite-(As), Hausmannite, Kutnohorite, Manganberzeliite
381
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)

Unique: Polydymite, Siegenite, Vaesite
274
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]

Unique: Ferrimolybdite
267
31 : Thermally altered carbonate, phosphate, and iron formations

Unique: Pumpellyite-(Fe2+), Xonotlite
239
13 : Hadean serpentinization

Unique: Brugnatellite, Hydrotalcite
213
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)

Unique: Gismondine Subgroup, Tiragalloite
184
47c : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Carbonates, phosphates, borates, nitrates]

Unique: Smithsonite
150
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]

Unique: Wulfenite
149
35 : Ultra-alkali and agpaitic igneous rocks

Unique: Vishnevite
122
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)116
36 : Carbonatites, kimberlites, and related igneous rocks

Unique: Lindsleyite
111
7 : Ultramafic igneous rocks

Unique: Redledgeite
100
47d : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Arsenates, antimonates, selenates, bismuthinates]92
26 : Hadean detrital minerals89
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)46
6 : Secondary asteroid phases43
38 : Ophiolites26
37 : Layered igneous intrusions and related PGE minerals19
50 : Coal and/or oil shale minerals19
47b : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Sulfates and sulfites]19
54 : Coal and other mine fire minerals (see also #51 and #56)18