What is "azabache"

Azabache (Spanish jet (lignite)) is the third studio album by Spanish singer Marta Sanchez. Was released in 1997. On this album more producers were involved (Andres Levin, Nile Rodgers, Camus Celli, Robyn Smith and Stephen Budd) along with longtime musical partner Christian De Walden and they created a rock oriented album, instead of the pop music Marta recorded for her first and second album. Critical reaction was mostly positive. The first single "Moja Mi Corazón", features world famous guitar player Slash and was produced by Nile Rodgers. The album yielded five singles: "Negro Azabache", "Algo Tienes", "Ya Ves" and "Amor Perdido". While promoting this album, Marta recorded along with opera singer Andrea Bocelli the song "Vivo por Ella", which became a worldwide smash hit and was later included on the international pressings of "Azabache". The majority of the tracks were recorded in English (as usual for any Marta Sanchez album) and were released under the title "One Step Closer".