Postal codes in Austria. Postal codes in Austria were introduced in 1966 and consist of four numbers. System. The first indicates the state: 1xxx: Vienna; 2xxx: Lower Austria (east of Vienna) 3xxx: Lower Austria (west of Vienna) 4xxx: Upper Austria; 5xxx: Salzburg and east Upper Austria; 6xxx: Tyrol and Vorarlberg (without East Tyrol) 7xxx: Burgenland; 8xxx: Styria
There are two kinds of schists found in the canyon, either a mica-rich schist, that has a lot of biotite and muscovite mica, or a schist rich in hornblende, a type of mineral called amphibole. A zone of schist crosses the canyon between Gunnison Point and Pulpit Rock Overlook.
The names of various schists are derived from their mineral constituents. For example, schists rich in mica are called mica schists and include biotite or muscovite. Most schists are mica schists, but graphite and chlorite schists are also common.chist forms at a higher temperature and has larger grains than phyllite. Geological foliation (metamorphic arrangement in layers) with medium to large grained flakes in a preferred sheetlike orientation is called schistosity.