Goyaba is a recent variety of quartz with inclusions with uniform colors varying from red to orange, yellow and salmon pink. Some rough has been eated, but most has natural colors. The gems owes its vibrant colour probably to microscopic Amphibole, Horneblende or Actinolite needle inclusions which saturate the stone.
Goyaba is a colored fruit common in Brazil. It has been used other spelling for the same name: Gyoba, Guava or Goiaba, depending on the language used for the fruit.
It comes from Minas Gerais, Brazil.