Perma is a tough sandstone predominantly composed of quartz sand grains cemented together by silicate and carbonate minerals with layers which have metamorphosed to quartzite. Perma contains micas which can give sheen to some of its surfaces and iron oxides which give “earthy” tones to exposed areas of the stone. Leaf-like mineral deposits called dendrites can often be seen on the stones’ exposed faces. Perma is a very durable stone as quartz is among the hardest and most resilient minerals on the earth’s surface and quartzite is an extremely hard rock. Perma thin veneer is available in squares and rectangles, and ledge.