👉 The term "brazilite" is a mineral in the group of micas known as quartz. It is typically found in the Earth's crust, especially in areas with high pressure and temperature gradients. Brazilites are composed of three distinct minerals: quartz, pyroxene (or pyroxilite), and beryl. Quartz is a type of mineral that forms when an igneous rock melts and cools under the influence of gravity and pressure. It is composed of silica (SiO