Predictive Mineralogy

Possible unrecorded species at Iza cave, Bistrița-Năsăud County, Romania

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	78.62%	Ankerite (62.42 %), Dickite (54.00 %), Hydroniumjarosite (58.23 %), Jarosite (50.73 %), Pyrite (51.72 %)
Galena	PbS	71.16%	Ankerite (54.09 %), Dickite (50.00 %), Hydroniumjarosite (51.90 %)
Albite	Na(AlSi₃O₈)	52.17%	Benitoite (52.17 %)
Sphalerite	ZnS	42.68%	Ankerite (53.36 %)
Malachite	Cu₂(CO₃)(OH)₂	41.51%	Hydroniumjarosite (51.90 %)

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]	50
49 : Oxic cellular biomineralization (see also #44)	46
47b : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Sulfates and sulfites]	43
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)	38
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)	38
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	37
21 : Chemically precipitated carbonate, phosphate, iron formations	36
19 : Granitic intrusive rocks	35
52 : Guano- and urine-derived minerals	35
35 : Ultra-alkali and agpaitic igneous rocks	35