Predictive Mineralogy

Possible unrecorded species at San Salvatore, Bobbio, Piacenza Province, Emilia-Romagna, Italy

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
Quartz	SiO₂	98.44%	Anatase (75.16 %), Brookite (83.37 %), Calcite (62.43 %)
Pyrite	FeS₂	90.33%	Anatase (53.26 %), Brookite (57.65 %), Calcite (51.16 %)
Rutile	TiO₂	56.67%	Brookite (56.67 %)

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
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	50
36 : Carbonatites, kimberlites, and related igneous rocks	50
34 : Complex granite pegmatites	48
26 : Hadean detrital minerals	48
24 : Authigenic minerals in terrestrial sediments (see also #17)	48
19 : Granitic intrusive rocks	40
49 : Oxic cellular biomineralization (see also #44)	10
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)	10
35 : Ultra-alkali and agpaitic igneous rocks	10
14 : Hot springs, geysers, and other subaerial geothermal minerals	10