Predictive Mineralogy

Possible unrecorded species at Wafi-Golpu project, Morobe Province, Papua New Guinea

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	99.98%	Bornite (85.52 %), Chalcocite (74.77 %), Covellite (85.83 %), Dickite (54.00 %), Enargite (73.08 %), Pyrite (51.72 %), Sphalerite (63.80 %)
Malachite	Cu₂(CO₃)(OH)₂	80.13%	Chalcocite (56.20 %), Covellite (54.66 %)
Galena	PbS	78.89%	Covellite (64.18 %), Dickite (50.00 %), Enargite (69.48 %), Sphalerite (74.68 %)
Calcite	CaCO₃	52.15%	Montmorillonite (52.16 %)

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
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) Unique: Enargite	100
48 : Soil leaching zone minerals	17
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)	14
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)	8
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)	6
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	4
28 : Photo-alteration, pre-biotic	4
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]	2
6 : Secondary asteroid phases	2
53 : Other minerals with taphonomic origins	1
50 : Coal and/or oil shale minerals	1