Metamorphic Thin Section

Schist comes from the ancient greek for split through latin and french.

Metamorphic thin section. Schist is a metamorphic rock that comes in almost infinite variety but its main characteristic is hinted at in its name. Schist from the col de l iseran. Rock forming minerals of metamorphic rocks in thin section a work in progress 1 olivine.

Bear this in mind even if minerals are not marked as being common in sediments. Iii colour in ts etc. Note that these are colours seen in thin section not hand specimen.

Plane polarised light width of view 2 5 mm. Metamorphic minerals in thin section mostly not seen previously for igneous rocks. The range of colours for each mineral is given together with a description of any pleochroism.

Rock with quartz garnet hornblende muscovite. The reactions also resulted in clouding plagioclase and interstitial augite with millions of minute spinel and fe ti oxide inclusions. Remember that all of the igneous minerals can also occur in metamorphic rocks.

Metamorphic rocks thin sections. It is formed by dynamic metamorphism at high temperatures and high pressures that aligns the grains of mica hornblende and other flat or elongated minerals. Schist is formed by regional metamorphism and has schistose fabric it has coarse mineral grains and is fissile splitting into thin layers.