Carbonado in the pores that are common in carbonados, they may have been introduced after carbonado formation. Inclusions of other minerals, rare or nearly absent in the Earth's crust, are found at least partly incorporated in diamond, not just in pores: among such other minerals are those with compositions of Si, SiC, and Fe‑Ni. No distinctive high-pressure minerals, including the hexagonal carbon polymorph, lonsdaleite, have been found as inclusions in carbonados, although such inclusions might be expected if carbonados formed by meteorite impact. Isotope studies have yielded further clues to carbonado origin. The carbon isotope value is very low (little carbon‑13
This Is What You Want... This Is What You Get were not re-recorded for "This Is What You Want...This Is What You Get" (although a remixed version of "Blue Water" was included as the B-side on the "This Is Not a Love Song" 12" single). Songs on "This Is What You Want...This Is What You Get" which did not appear in any form on "Commercial Zone" are "Tie Me to the Length of That", "The Pardon" and "1981", and are the only songs on the album which do not credit Keith Levene as a co-writer. PiL was supposed to score the soundtrack for the 1983 suspense film "Copkiller", starring Harvey