Aragonite
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Aragonite is a carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate, the others being calcite and vaterite. It is formed by biological and physical processes, including precipitation from marine and freshwater environments.
Aragonite from Los Molinillos, Cuenca, Spain, sample width about 4 cm
Aragonite crystals from Cuenca, Castile-La Mancha, Spain
Aragonite crystal cluster from Spain
Remnant biogenic aragonite (thin, rainbow-colored shell) on the ammonite Baculites (Pierre Shale, Late Cretaceous, South Dakota)
Molina de Aragón
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Molina de Aragón is a municipality located in the province of Guadalajara, Castile-La Mancha, Spain. According to the 2009 census (INE), the municipality had a population of 3,671 inhabitants. It held the record (−28.2 °C) for the lowest temperature measured by a meteorological station in Spain, and now it's on the third place.
A typical inn (built 1826) at Molina de Aragón, Spain.
Old bridge over the Gallo river, 13th century, in the background the Medieval alcazar of Molina de Aragón, Spain.
Giraldo on top of St. Francis Church bell Tower.