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Tufa
Tufa is a type of porous limestone formed by the precipitation of calcium carbonate from water, often in environments where freshwater meets carbon-dioxide-rich waters,...
Marston Marble
Marston Marble is a unique and highly ornamental type of fossiliferous limestone, valued for its artistic and aesthetic qualities. It is characterized by very...
Lava Stone
Lava stone is a type of igneous rock formed from the rapid cooling of lava that is rich in magnesium and iron. This cooling...
Tiger Iron
Tiger Iron is a metamorphic rock composed mainly of tiger's eye, red jasper, and black hematite. It's admired for its remarkable bands of color...
Boji Stones (Shaman Stones)
Boji Stones, also known as Moqui Marbles or Shaman Stones, are small, round, naturally occurring stones found in the Navajo Sandstone formation of Utah...