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Predictive Mineralogy

Possible unrecorded species at La Rampe des Commères, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France

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
PyriteFeS289.72%Calcite (51.16 %), Clinochlore (51.79 %), Epidote (56.37 %)

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
6 : Secondary asteroid phases29
26 : Hadean detrital minerals28
13 : Hadean serpentinization27
38 : Ophiolites27
31 : Thermally altered carbonate, phosphate, and iron formations23
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies)22
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)22
43 : Shear-induced minerals (including mylonite/slickensides)17
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)16