Rhyolite is an igneous rock related to obsidian
What is rhyolite?
Rhyolite is a coagulation rock and is pushed to the surface by volcanic activity. It occurs when granite magma quietly steams out of a volcano and the lava cools down quickly. When the lava cools down so quickly that no crystals can be formed, we speak of volcanic glass, better known as obsidian. When the magma cools down a bit slower, rhyolite is formed.
Volcano eruptions of granite magma
Volcanic eruptions of granite magma are rare. Only three have been known since 1900. The Andrew Strait volcano in Papua New Guinea, the Novarupta volcano in Alaska and the Chaiten Volcano in Chile. In the past, the most explosive volcanic eruptions were due to granite magma. Examples are Yellowstone in Wyoming, Long Valley in California and Valles in New Mexico.
Working of rhyolite
Rhyolite helps to process the past and integrate it with the present. The stone gives peace of mind and learns to live in the moment. It helps to bring insight into difficult times and stimulates finding solutions. Rhyolite increases self-confidence and self-esteem. It helps to find inner strength.