Predictive Mineralogy

Possible unrecorded species at Mount Ibis, Walgidee Hills, Noonkanbah Station, Derby-West Kimberley Shire, Western Australia, Australia

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
Calcite	CaCO₃	91.51%	Diopside (54.07 %), Perovskite (58.08 %), Phlogopite (55.90 %)
Magnetite	Fe²⁺Fe³⁺₂O₄	85.72%	Leucite (56.66 %), Perovskite (67.07 %)
Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂	61.50%	Microcline (61.50 %)
Albite	Na(AlSi₃O₈)	56.11%	Microcline (56.11 %)
Nepheline	Na₃K(Al₄Si₄O₁₆)	51.57%	Leucite (51.57 %)

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
35 : Ultra-alkali and agpaitic igneous rocks	50
36 : Carbonatites, kimberlites, and related igneous rocks	37
41 : Mantle metasomatism	33
54 : Coal and other mine fire minerals (see also #51 and #56)	8
50 : Coal and/or oil shale minerals	8
26 : Hadean detrital minerals	8
8 : Mafic igneous rocks	8
34 : Complex granite pegmatites	7
9 : Lava/xenolith minerals (hornfels, sanidinite facies)	7
24 : Authigenic minerals in terrestrial sediments (see also #17)	7