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700 millones de años
aficionados a la mineralogía y coleccionistas que deseen iniciarse en la exploración y el estudio de los materiales geológicos
Una colección imprescindible para los amantes de los fósiles
About 50 living species of Strombus are known
0cm Main collection of the series of 20 Premium World Minerals
Fluorita XL Calcita Espática 700 millones de añosChemical formula CaF 2 Crystalline system Cubic, Octahedron, Rhombododecahedron Class halides Origin Hunan, China Size Medium : 3. 0 4. 0 cm big : 4. 0 5. 0cm Massive Fluorite with green, colorless and purple bands. In industry, fluorite is mainly used as a flux in the metallurgy of iron and steel. It is used as a source of fluorine to obtain hydrofluoric acid and also to obtain insecticides, resins and plastics. The piece you receive may differ
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