👉 The Guatemala fluid, also known as the Guatemalan fluid or Fluid of the Guatemalan Volcanic Arc, is a rare, highly viscous magma with a unique chemical composition that sets it apart from other volcanic magmas. It is characterized by extremely high silica content (around 75-80%), low iron and magnesium levels, and a high concentration of certain trace elements like aluminum and potassium. This composition results in a very thick, sticky, and slow-moving lava that can persist for extended periods, often forming extensive lava flows and domes. The fluid's viscosity inhibits gas escape, leading to explosive eruptions when pressure builds up, making it a significant hazard in the region.