The granulite district of Saxony (in the area of Rosswein and Penig) in Germany may be considered the typical region for rocks of this group.

no it's foliated

Greenschist, blueschist, zeolite, granulite and eclogite high grade metamorphic rocks.

Usually a grayish color. Dark gray.

Hans-Martin Albat has written:

'The Proterozoic granulite facies terrane around Kliprand, Namaqualand Metamorphic Complex' -- subject(s): Facies (Geology), Geology, Granulite, Stratigraphic Geology