Yes, there are color variations of Austrias Tauern Gneiss. Tauern Gneiss is a type of metamorphic rock that is predominantly composed of quartz, feldspar, and mica minerals. This rock can exhibit a range of different colors due to variations in mineral composition and impurities.

The most common colors of Tauern Gneiss are shades of gray, ranging from light gray to dark gray. However, it can also be found in hues of white, pink, red, brown, and even green. These variations in color are often attributed to differences in the type and amount of minerals present in the rock. For example, higher concentrations of iron oxide can give the rock a reddish color, while higher amounts of chlorite can result in a greenish tint.

It is worth mentioning that the color of Tauern Gneiss can also be influenced by weathering and exposure to the environment over time. As a result, the same rock formation may exhibit different shades and degrees of coloration depending on its location and age.