Predictive Mineralogy

Possible unrecorded species at Piaotang Mine, Xihuashan ore field, Dayu Co., Ganzhou, Jiangxi, 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
Albite	Na(AlSi₃O₈)	80.65%	Helvine (56.73 %), Triplite (55.29 %)
Malachite	Cu₂(CO₃)(OH)₂	56.19%	Chalcocite (56.20 %)

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
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)	17
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]	17
26 : Hadean detrital minerals	14
31 : Thermally altered carbonate, phosphate, and iron formations	12
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)	9
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	9
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12])	9
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)	7
15 : Black/white smoker minerals and other seafloor hydrothermal minerals	6