Although some years ago there were thought to be several types (species) of discus and all were given different 'taxonomic' names, DNA research has now proven that there are only two types (species) of discus. These two species are Symphysodon discus and Symphysodon aequefasciata. The former is known as the "Heckel" and is quite hard to keep and breed and the latter (S. aequefasciata) is the one that the commercial breeders (mainly in Tropical Asia) have had a lot of fun with and produced all the fancy colours like the one you refered to as the "Turquoise Discus". Genetically a "Turquoise Discus" is the same as a "Pidgeon Blood" is the same as a "Marlboro Red". They are all S.aequefasciata.
The scientific name for turquoise is "copper aluminum phosphate." It is a hydrated phosphate of copper and aluminum.
discus throw
Turquoise or the secondary is Blue Topaz
YES
Turquoise Taylor Grant's birth name is Julie Kristine Upper.
turquoise
turquoise
Turquoise is like a smooth green rock with a wavy shape. It gets it's name from it's color which happens to be turquoise. There are lots of types and are found in lots of places!
turquoise,azure,sapphire,indigo
Turquoise, an alternative name to Cyan.
Aqua and turquoise both do.
Brown