Predictive Mineralogy

Possible unrecorded species at Buferrera mines, Covadonga, Cangas de Onís, Asturias, Spain

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
Calcite	CaCO₃	78.12%	Hausmannite (51.00 %), Romanèchite (55.36 %)
Pyrite	FeS₂	77.78%	Goethite (55.41 %), Hematite (50.17 %)
Rhodochrosite	MnCO₃	51.25%	Hausmannite (51.25 %)

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
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits Unique: Hausmannite	100
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]	2
47e : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Vanadates, chromates, manganates]	2
49 : Oxic cellular biomineralization (see also #44)	2
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]	2
24 : Authigenic minerals in terrestrial sediments (see also #17)	1
6 : Secondary asteroid phases	1
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])	1
56 : Slag and smelter minerals (see also #51 and #55)	1
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)	1
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)	1