Predictive Mineralogy

Possible unrecorded species at Tiefengraben quarry, Reinerzau mining district, Alpirsbach, Freudenstadt, Karlsruhe Region, Baden-Württemberg, Germany

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	99.99%	Alacránite (52.63 %), Arsenolite (75.29 %), Baryte (60.21 %), Fluorite (66.12 %), Siderite (73.22 %), Proustite (72.12 %), Sphalerite (67.53 %), Xanthoconite (74.26 %)
Pyrite	FeS₂	99.95%	Alacránite (57.89 %), Arsenolite (71.10 %), Baryte (50.79 %), Siderite (66.11 %), Proustite (69.82 %), Sphalerite (75.10 %), Xanthoconite (72.28 %)
Calcite	CaCO₃	99.49%	Alacránite (52.63 %), Arsenolite (61.98 %), Baryte (51.88 %), Siderite (52.18 %), Proustite (54.30 %), Xanthoconite (73.27 %)
Silver	Ag	88.43%	Proustite (56.73 %), Xanthoconite (73.27 %)
Acanthite	Ag₂S	87.22%	Proustite (55.52 %), Xanthoconite (71.29 %)
Chalcopyrite	CuFeS₂	79.49%	Arsenolite (65.02 %), Siderite (51.43 %), Proustite (61.70 %), Sphalerite (63.80 %), Xanthoconite (73.27 %)
Galena	PbS	79.17%	Arsenolite (53.61 %), Proustite (67.15 %), Sphalerite (74.68 %), Xanthoconite (73.27 %)
Pyrargyrite	Ag₃SbS₃	65.62%	Proustite (53.45 %), Xanthoconite (61.39 %)
Realgar	As₄S₄	63.15%	Alacránite (63.16 %)
Gypsum	CaSO₄ · 2H₂O	57.89%	Alacránite (57.89 %)
Arsenopyrite	FeAsS	55.13%	Arsenolite (55.13 %)
Hematite	Fe₂O₃	52.63%	Alacránite (52.63 %)
Marcasite	FeS₂	50.49%	Xanthoconite (50.50 %)

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: Proustite, Xanthoconite	100
50 : Coal and/or oil shale minerals	1
54 : Coal and other mine fire minerals (see also #51 and #56)	1
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33)	0
45a : Oxidized fumarolic minerals (see also [#11]) - [Sulfates, arsenates, selenates, antimonates]	0
11 : Volcanic fumarole minerals; reduced phases (see also #45)	0
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals]	0
47d : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Arsenates, antimonates, selenates, bismuthinates]	0
36 : Carbonatites, kimberlites, and related igneous rocks	0
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	0
53 : Other minerals with taphonomic origins	0