Predictive Mineralogy

Possible unrecorded species at Shimenkou Cu-Au-S-Fe deposit (Zhimenkou Cu-Au-S-Fe deposit), Qingyang Co., Chizhou, Anhui, China

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
Malachite	Cu₂(CO₃)(OH)₂	80.13%	Chalcocite (56.20 %), Covellite (54.66 %)

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
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals] Unique: Halloysite	100
53 : Other minerals with taphonomic origins	2
50 : Coal and/or oil shale minerals	2
54 : Coal and other mine fire minerals (see also #51 and #56)	2
15 : Black/white smoker minerals and other seafloor hydrothermal minerals	1
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)	1
49 : Oxic cellular biomineralization (see also #44)	1
24 : Authigenic minerals in terrestrial sediments (see also #17)	1
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])	1
17 : Marine authigenic Hadean minerals (see also #24)	1
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)	1