Predictive Mineralogy

Possible unrecorded species at Tecoma claim group (Tecoma Hill property; Tecoma South Side; Sunset; and Patchee claims), Elko County, Nevada, USA

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
Sphalerite	ZnS	99.77%	Anglesite (64.09 %), Cerussite (56.70 %), Chalcopyrite (50.66 %), Galena (65.95 %), Hemimorphite (68.27 %), Smithsonite (72.43 %)
Malachite	Cu₂(CO₃)(OH)₂	50.34%	Anglesite (50.35 %)

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
47h : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface oxidized, dehydrated minerals] Unique: Wulfenite	100
47c : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Carbonates, phosphates, borates, nitrates] Unique: Smithsonite	100
54 : Coal and other mine fire minerals (see also #51 and #56)	3
50 : Coal and/or oil shale minerals	3
45b : Oxidized fumarolic minerals (see also [#11]) - [Other oxidized fumarolic minerals]	3
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]	2
57 : Other minerals formed by human processes	2
45a : Oxidized fumarolic minerals (see also [#11]) - [Sulfates, arsenates, selenates, antimonates]	2
47b : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Sulfates and sulfites]	2
34 : Complex granite pegmatites	0
11 : Volcanic fumarole minerals; reduced phases (see also #45)	0
15 : Black/white smoker minerals and other seafloor hydrothermal minerals	0