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Três Pontas, Minas Gerais, Southeast Region, Brazil

Três Pontas nappe (Quartz-K feldspar-kyanite-garnet gneisses, kyanite-garnet granulites associated with impure quartzites, calc-silicates rocks and ultramafic sills and lenses).
Lenses (boudins) of quartz+feldspar leucosomes within kyanite Al-grnulites and ultramafic lenses of phlogopite orthopyroxenites and garnet clinopyroxenites.
UHP metamorphic rocks recrystallized into high-grade granulite at shallower levels during exhumation (collision zone).



References:
- Chris D. Parkinson et al. (2001): "Ultrahigh-pressure pyrope-kyanite granulites and associated eclogites in Neoproterozoic nappes of southeast Brazil", Universidade do Estado do Rio de Janeiro, http://akmotoki.tripod.com/2001/Waseda/Cdp.html.





Mineral List:
'Albite-Anorthite Series'
'Almandine-Pyrope Series'
'Apatite'
Calcite
'Clinopyroxene Subgroup'
Coesite
Graphite
Ilmenite
Jadeite
'K Feldspar'
Kyanite
'Monazite'
Muscovite
'Orthopyroxene Subgroup'
Phengite
Phlogopite
Pyrope
Pyrophyllite
Quartz
Rutile


20 entries listed. 12 valid minerals.

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