Quick Answer. A microalbuminuria test, or urine albumin test, helps identify kidney damage in diabetics and other risk groups, according to Healthline. In a healthy kidney the albumin level is typically under 30 micrograms per milligram. Levels higher than this indicate some amount of kidney damage may be present.
The Appalachian mountains are made of segments of sedimentary, volcanic and ancient oceanic floor (from plate collision) rock.
Metamorphic rocks fall into two major categories: foliated metamorphic sedimentary rocks non-foliated metamorphic rocks. Refer to Metamorphic Rock Photos for more visual examples of each of these metamorphic rock types. Foliated (Layered) Metamorphic Rocks 1. slate Slate is metamorphosed shale. Slate is tougher than shale and it breaks into thin, flat layers. Slate is usually dark gray, but it can also be red colored.