Predictive Mineralogy

Possible unrecorded species at Northeast slope, Pizzo dell'Arzo, Cavagnöö Glacier (Cavagnoli Glacier; Cavagnöö area; Cavagnoli area), Robièi (Alpe di Robièi; Lake Robièi area), Bavona Valley, Cevio, Vallemaggia, Ticino, Switzerland

This table is based on statistical analysis of other localities containing similar species to the ones found at this locality.

Possible missing species	Formula	Match %	Due to recorded presence of
Chalcopyrite	CuFeS₂	78.32%	Ankerite (62.42 %), Pyrite (51.72 %), Pyrrhotite (76.22 %), Siderite (51.43 %)
Sphalerite	ZnS	63.35%	Ankerite (53.36 %), Pyrrhotite (55.40 %)
Magnetite	Fe²⁺Fe³⁺₂O₄	57.88%	Ilmenite (57.89 %)
Beryl	Be₃Al₂(Si₆O₁₈)	55.79%	Euclase (55.80 %)
Galena	PbS	43.27%	Ankerite (54.09 %)

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 Mode	Score
34 : Complex granite pegmatites	50
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]	44
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)	10
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	7
31 : Thermally altered carbonate, phosphate, and iron formations	6
26 : Hadean detrital minerals	6
19 : Granitic intrusive rocks	5
43 : Shear-induced minerals (including mylonite/slickensides)	5
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)	5
39 : High-𝑃 metamorphism (blueschist, eclogite, ultrahigh 𝑃 facies)	5