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Predictive Mineralogy

Possible unrecorded species at Stifle claims (Stifle prospects; Stifle Memorial claim; Traverse Cr. Special Interest Area; Traverse Creek Special Interest Area), Meadow Brook, Georgetown District, East Segment Mother Lode, El Dorado County, California, 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
QuartzSiO299.93%Calcite (62.43 %), Clinochlore (65.82 %), Diopside (51.68 %), Grossular (59.42 %), Opal (60.07 %), Prehnite (64.07 %), Tremolite (61.46 %), Vesuvianite (53.96 %)
PyriteFeS290.06%Calcite (51.16 %), Clinochlore (51.79 %), Tremolite (57.83 %)

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
31 : Thermally altered carbonate, phosphate, and iron formations49
6 : Secondary asteroid phases5
38 : Ophiolites5
26 : Hadean detrital minerals4
50 : Coal and/or oil shale minerals4
54 : Coal and other mine fire minerals (see also #51 and #56)4
13 : Hadean serpentinization3
10 : Basalt-hosted zeolite minerals2
8 : Mafic igneous rocks2