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Predictive Mineralogy

Possible unrecorded species at Lower Salt Lake Tuff, Puuloa Road, Oahu Island, Honolulu County, Hawaii, USA

This table is based on statistical analysis of other localities containing similar species to the ones found at this locality.

Possible missing speciesFormulaMatch %Due to recorded presence of
CalciteCaCO380.00%Phillipsite-Ca (80.00 %)
AnalcimeNa(AlSi2O6) Β· H2O53.33%Phillipsite-Ca (53.33 %)
Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 Β· 12H2O53.33%Phillipsite-Ca (53.33 %)

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 ModeScore
48 : Soil leaching zone minerals50
47a : Low-𝑇 subaerial oxidative hydration, weathering (see also #16 and #23) - [Near-surface hydration of prior minerals]50
35 : Ultra-alkali and agpaitic igneous rocks50
25 : Evaporites (prebiotic)50
24 : Authigenic minerals in terrestrial sediments (see also #17)50
22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23)50
17 : Marine authigenic Hadean minerals (see also #24)50
16 : Low-𝑇 aqueous alteration of Hadean subaerial lithologies (see also #23)50
10 : Basalt-hosted zeolite minerals50
9 : Lava/xenolith minerals (hornfels, sanidinite facies)50