Petrography lower if wholly or partly vitreous. The specific gravity of the more common rocks range from about 2.5 to 3.2. Archaeologists use petrography to identify mineral components in pottery. This information ties the artifacts to geological areas where the raw materials for the pottery were obtained. In addition to clay, potters often used rock fragments, usually called "temper" or "aplastics", to modify the clay's properties. The geological information obtained from the pottery components provides insight into how potters selected and used local and non-local resources. Archaeologists are able to determine whether pottery found in a particular location was locally produced
This Is What You Want... This Is What You Get songs by John Lydon, Keith Levene, and Martin Atkins except * by John Lydon and Martin Atkins Five songs on "This Is What You Want...This Is What You Get" are re-recordings of tracks which originally appeared on "Commercial Zone": "Bad Life" (originally titled "Mad Max"), "This Is Not a Love Song" (originally titled "Love Song"), "Solitaire" (entitled "Young Brits" on the second pressing of "Commercial Zone"), "The Order of Death" (originally titled "The Slab"), and "Where Are You?" (originally titled "Lou Reed Part 2"). Four songs from "Commercial Zone", "Bad Night", "Lou Reed Part 1", "Blue Water" and "Miller Hi-Life",