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Silikatni mineraliMinerali magnezijaMinerali željeza


mineralmagnezijželjezosilikatZemljimeteoritaMjesecaMarsamagnezijaželjezaforsteritfajalitUSA












Olivin




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Olivin

Peridot2.jpg
Općenito
Kategorija
Mineral
Hemijska formula
(Mg, Fe)2SiO4
Identifikacija
Boja
žut do žuto-zelen
Kristalni habitus
masivan do granularan
Kristalni sistem
Ortorompski
Kalavost
slaba
Tvrdoća
6,5 - 7
Ogreb
bijel

Olivin je mineral čiji je hemijski sastav magnezij željezo silikat (Mg,Fe)2SiO4. Jedan je od najčešćih minerala na Zemlji, a nađen je i u sastavu meteorita i uzorak porijeklom sa Mjeseca i Marsa. Odnosa količina magnezija i željeza varira, pa se magnezijumov olivin iz serije tzv. čvrstih rastvora naziva forsterit (Mg2SiO4), a željezni fajalit (Fe2SiO4).









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