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Predictive Mineralogy

Possible unrecorded species at Whistling Cay, St. John, U.S. Virgin Islands, 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
CalciteCaCO396.69%Diopside (54.07 %), Phlogopite (55.90 %), Titanite (52.17 %), Wollastonite (65.90 %)
PyriteFeS251.21%Wollastonite (51.22 %)

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
6 : Secondary asteroid phases50
35 : Ultra-alkali and agpaitic igneous rocks43
36 : Carbonatites, kimberlites, and related igneous rocks39
31 : Thermally altered carbonate, phosphate, and iron formations39
38 : Ophiolites39
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)39
7 : Ultramafic igneous rocks34
50 : Coal and/or oil shale minerals25
54 : Coal and other mine fire minerals (see also #51 and #56)25
26 : Hadean detrital minerals21