Chalcedony to as prase. However, the term prase is also used to describe green quartz, and to a certain extent is a color-descriptor, rather than a rigorously defined mineral variety.) Blue-colored chalcedony is sometimes referred to as "blue chrysoprase" if the color is sufficiently rich, though it derives its color from the presence of copper and is largely unrelated to nickel-bearing chrysoprase. Heliotrope is a green variety of chalcedony, containing red inclusions of iron oxide that resemble drops of blood, giving heliotrope its alternative name of bloodstone. In a similar variety, the spots are yellow instead, known as plasma. Moss agate
A Tribe Called Red on and produced one of the last known Das Racist songs, called "Indians From All Directions", as well as the song "A Tribe Called Red" on Angel Haze's album "Dirty Gold". In 2014, they released "Burn Your Village to the Ground", a non-album protest song about the complicated aboriginal relationship with the colonialist connotations of Thanksgiving. In 2015, they released a pro-wrestling themed EP "Suplex", with appearances from Smalltown DJs, as well as a remix of Buffy Sainte-Marie's song "Working for the Government". In 2016, they released LP "We Are the Halluci Nation" in September. Guest collaborators on the album