Exsolution in Ferromagnesian Olivine of the Divnoe Meteorite

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Science  02 Dec 1994:
Vol. 266, Issue 5190, pp. 1545-1547
DOI: 10.1126/science.266.5190.1545


Ferromagnesian olivine, one of the most common minerals in the solar system, has been widely regarded as a continuous solid solution, although several thermodynamic analyses have suggested the possibility of a miscibility gap at low temperatures. Natural ferromagnesian olivine from the Divnoe meteorite contains compositionally different exsolution lamellae, providing direct evidence for the existence of a miscibility gap in iron-magnesium olivine solid solutions.