Predictive Mineralogy

Possible unrecorded species at Andranomanitsy alluvials, Miary Lamatihy, Sakaraha District, Atsimo-Andrefana, Madagascar

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
Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂	75.36%	Chrysoberyl (50.00 %), Topaz (50.72 %)
Beryl	Be₃Al₂(Si₆O₁₈)	57.29%	Chrysoberyl (57.29 %)

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
26 : Hadean detrital minerals	50
34 : Complex granite pegmatites	50
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)	2
19 : Granitic intrusive rocks	1
48 : Soil leaching zone minerals	1
20 : Acidic volcanic rocks	1
46 : Near-surface hydrothermal alteration of minerals (see also #22)	1
3 : Solar nebular condensates (CAIs, AOAs, URIs)	0
6 : Secondary asteroid phases	0
9 : Lava/xenolith minerals (hornfels, sanidinite facies)	0