Black Hills gold jewelry elsewhere. Pure 24 Karat gold bars, and stocks of pure silver and copper are the basic materials. These metals are not required to be mined in the Black Hills. Pure gold and other precious metal stock can be acquired from anywhere in the world. The finished jewelry known as Black Hills Gold must be "produced" in the Black Hills of South Dakota. The different colors of gold used for leaves and other details are made when the pure 24 Karat yellow gold is alloyed with copper to achieve the traditional 14 karat pink (or red) gold, and the gold is
24-Carat Black by Eric B (on "In The Ghetto" in 1990), Dr. Dre (on "Nas Is Coming"), Jay-Z (on "Can I Live Pt 2"), Digable Planets (on "Cool Like Dat"), Naughty by Nature (for "Poverty's Paradise") and others. "Ghetto: Misfortune’s Wealth" was reissued on CD in 1995. Recordings which Warren had made with 24-Carat Black in 1973-1974, largely comprising orchestrated versions of love songs he had reportedly written in the mid-1960s, were stored by keyboardist and engineer Bruce Thompson, and were released on CD in 2009 under the title "Gone: The Promises of Yesterday". 24-Carat Black 24-Carat Black (sometimes styled as The