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Predictive Mineralogy

Possible unrecorded species at Piz Grevasalvas, Sils im Engadin/Segl, Maloja Region, Grisons, Switzerland

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
QuartzSiO279.72%Magnesio-riebeckite (57.63 %), Richterite (52.16 %)
PhlogopiteKMg3(AlSi3O10)(OH)262.93%Richterite (62.93 %)
CalciteCaCO358.62%Richterite (58.62 %)
DiopsideCaMgSi2O658.62%Richterite (58.62 %)
MagnetiteFe2+Fe3+2O457.75%Richterite (57.76 %)

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
35 : Ultra-alkali and agpaitic igneous rocks50
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)35
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits35
36 : Carbonatites, kimberlites, and related igneous rocks15
31 : Thermally altered carbonate, phosphate, and iron formations15
7 : Ultramafic igneous rocks15