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Predictive Mineralogy

Possible unrecorded species at Blötberget ore field, Ludvika, Dalarna County, Sweden

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
QuartzSiO299.73%Actinolite (69.88 %), Cordierite (64.23 %), Cummingtonite (65.31 %), Gedrite (61.73 %), Hematite (62.61 %), Magnetite (50.54 %)
PyriteFeS290.89%Actinolite (62.14 %), Cummingtonite (51.76 %), Hematite (50.17 %)
CalciteCaCO355.10%Actinolite (55.10 %)
ChalcopyriteCuFeS241.80%Actinolite (52.26 %)

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
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)50
26 : Hadean detrital minerals48
9 : Lava/xenolith minerals (hornfels, sanidinite facies)47
6 : Secondary asteroid phases15
8 : Mafic igneous rocks11
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies)10
19 : Granitic intrusive rocks9
41 : Mantle metasomatism8
20 : Acidic volcanic rocks7
37 : Layered igneous intrusions and related PGE minerals3