Tectosilicates | Structure of Earth Materials | Earth, Atmospheric, and Planetary Sciences | MIT OpenCourseWare

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Tectosilicates

Tectosilicates

Capped quartz showing crystal faces: SiO₂. Quartz crystals: SiO₂. Quartz (agate): SiO₂. Albite crystals: NaAlSi₃O₈. Albite crystals showing cleavage faces: CaAl₂Si₂O₈. Intergrown K-Feldspar crystals and fragment showing perthite lamelli: KAlSi₃O₈. K-Feldspar showing perthite lemelli: KAlSi₃O₉. K-Feldspar: KAlSi₃O₁₀. Leucite crystals in basalt: KAlSi₂O₆. Intergrown sodalite: Na₈(AlSiO₄)₆Cl₂ and nepheline: (Na,K)AlSiO₄.

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Earth, Atmospheric, and Planetary Sciences

As Taught In

Fall 2004

Level

Undergraduate

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