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Minerals in transmited light.
The thin section made in our labolatory, obserwation taken with Delta Optical POL-1000-TRF; microphotography taken with UCMOS 3,2 MP PRO.
Mica shists from Laos.
Chlorite with biotite and feldspars strongly altered by sericite
Strzegom massiff - hornblende
Biotite almost all replaced by chlorite
Strzegom massiff - plagioclase
Sanakham - Laos, plagioclase strongly altered by calcium
Strzegom - Massiff - Poland; plagioclase with hornblende
Strzegom massiff - Poland; perthite and plagioclase
Strzegom - massiff - Poland; zircon
quartz myrmekite with feldspar
Biotite strongly altered by chlorite
Plagioclase strongly altered by saurericitization
in transmited light - quartz with calcite infil of cracks
Guarantee of quality.
Thin section preparation - ABC A HEAD - Piotr Krzemiński