Crystalline textures include phaneritic, foliated, and porphyritic. It is the finest grained foliated metamorphic rock. For example, slate is a foliated metamorphic rock, originating from shale. It is foliated and white to cream with biotite and feldspar in large crystals. Schists are foliated rocks that are primarily composed of lamellar minerals such as micas. There are two kinds of metamorphic rocks which are foliated and non-foliated. The Caenstone body rests on serpentine shafts with foliated capitals. A colonnade of trefoil arches and foliated capitals forms a screen to the platform. These columns have sections of twist-fluting alternating with wide bands of foliated reliefs. It occurs as foliated to fibrous masses, and in an exceptionally rare crystal form. The smaller spaces are filled with carvings of animals, birds, flowers and foliated ornament. Abbot Suger added bronze upper members with foliated scrolls and a back-piece. It is typically dark-colored and dense, with a weakly foliated or schistose (flaky) structure. Other varieties of foliated rock include slates, phyllites, and mylonite. Marble is typically not foliated, although there are exceptions.