👉 The term "helictite" is a mineralogy term that describes a type of quartz, which is composed primarily of two layers of different minerals with alternating colors. Helictites are often found in metamorphic rocks and can be found in many places around the world. Helictites are typically formed when magma rises from the Earth's crust and cools to form the rock above it. The magma contains elements such as iron, aluminum, magnesium, silicon, and other metals that were originally present