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
Is This What You Want? Is This What You Want? Is This What You Want? is the debut album by English rock and soul singer Jackie Lomax, released in 1969 on the Beatles' Apple record label. It is notable for the involvement of three Beatles: It was produced by George Harrison and features contributions from Harrison, Paul McCartney and Ringo Starr. The album includes Lomax's debut single for Apple, the Harrison-written "Sour Milk Sea", while the US version added "New Day", which was produced by Lomax and released as a non-album single in Britain. The recording sessions for "Is This What You Want?" began in