One of the cool things that we were surprised to find moving to this area are a special type of rock locally called Spirit Stones.
Concretions, Spirit Stones, Cook Inlet Concretions, or Fairy Stones as they are called in some parts of the world, are a type of mineral concretions. No one is quite sure how these concretions are formed, though I’ve heard many theories. Update: Scientist figured out how they are formed after I created this post. Decaying organic matter releases chemicals that react with the mineral calcite, and cements together sand and clay to form a hard concretion. Read more in this Forbes article here. Continue reading “Searching For Spirit Stones”
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